ข้อสอบ A-Level คณิตประยุกต์ 1 ปี 2559 (วิชาสามัญเก่า)

ข้อ 25

กำหนดให้ size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px a to the power of size 12px 2 size 12px space size 12px greater than size 12px space size 12px 81 over size 12px 4
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space square root of size 12px a to the power of size 12px 2 end root size 12px space size 12px greater than size 12px space square root of size 12px 81 over size 12px 4 end root
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space begin mathsize 12px style stretchy vertical line a stretchy vertical line end style size 12px space size 12px greater than size 12px space size 12px 9 over size 12px 2
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px จะได ้ size 12px space size 12px space size 12px a size 12px greater than size 12px 9 over size 12px 2 size 12px space size 12px และ size 12px space size 12px a size 12px less than size 12px minus size 12px 9 over size 12px 2
size 12px ด ั งน ั้ น size 12px space size 12px space size 12px จำนวนเต ็ มลบท ี่ มากท ี่ ส ุ ดท ี่ ทำให ้ size 12px space size 12px a to the power of size 12px 2 size 12px x to the power of size 12px 2 size 12px plus size 12px 9 size 12px x size 12px plus size 12px 1 size 12px space size 12px ไม ่ ม ี คำตอบเป ็ นจำนวนจร ิ ง size 12px space size 12px ค ื อ size 12px space size 12px a size 12px equals size 12px minus size 12px 5 เป็นฟังก์ชันพหุนาม ซึ่ง size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px a to the power of size 12px 2 size 12px space size 12px greater than size 12px space size 12px 81 over size 12px 4
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space square root of size 12px a to the power of size 12px 2 end root size 12px space size 12px greater than size 12px space square root of size 12px 81 over size 12px 4 end root
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space begin mathsize 12px style stretchy vertical line a stretchy vertical line end style size 12px space size 12px greater than size 12px space size 12px 9 over size 12px 2
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px จะได ้ size 12px space size 12px space size 12px a size 12px greater than size 12px 9 over size 12px 2 size 12px space size 12px และ size 12px space size 12px a size 12px less than size 12px minus size 12px 9 over size 12px 2
size 12px ด ั งน ั้ น size 12px space size 12px space size 12px จำนวนเต ็ มลบท ี่ มากท ี่ ส ุ ดท ี่ ทำให ้ size 12px space size 12px a to the power of size 12px 2 size 12px x to the power of size 12px 2 size 12px plus size 12px 9 size 12px x size 12px plus size 12px 1 size 12px space size 12px ไม ่ ม ี คำตอบเป ็ นจำนวนจร ิ ง size 12px space size 12px ค ื อ size 12px space size 12px a size 12px equals size 12px minus size 12px 5 และ size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px a to the power of size 12px 2 size 12px space size 12px greater than size 12px space size 12px 81 over size 12px 4
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space square root of size 12px a to the power of size 12px 2 end root size 12px space size 12px greater than size 12px space square root of size 12px 81 over size 12px 4 end root
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space begin mathsize 12px style stretchy vertical line a stretchy vertical line end style size 12px space size 12px greater than size 12px space size 12px 9 over size 12px 2
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px จะได ้ size 12px space size 12px space size 12px a size 12px greater than size 12px 9 over size 12px 2 size 12px space size 12px และ size 12px space size 12px a size 12px less than size 12px minus size 12px 9 over size 12px 2
size 12px ด ั งน ั้ น size 12px space size 12px space size 12px จำนวนเต ็ มลบท ี่ มากท ี่ ส ุ ดท ี่ ทำให ้ size 12px space size 12px a to the power of size 12px 2 size 12px x to the power of size 12px 2 size 12px plus size 12px 9 size 12px x size 12px plus size 12px 1 size 12px space size 12px ไม ่ ม ี คำตอบเป ็ นจำนวนจร ิ ง size 12px space size 12px ค ื อ size 12px space size 12px a size 12px equals size 12px minus size 12px 5

ถ้า straight G open parentheses straight x close parentheses ต่อเนื่องที่ straight x equals negative 1 แล้ว size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px a to the power of size 12px 2 size 12px space size 12px greater than size 12px space size 12px 81 over size 12px 4
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space square root of size 12px a to the power of size 12px 2 end root size 12px space size 12px greater than size 12px space square root of size 12px 81 over size 12px 4 end root
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space begin mathsize 12px style stretchy vertical line a stretchy vertical line end style size 12px space size 12px greater than size 12px space size 12px 9 over size 12px 2
size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px space size 12px จะได ้ size 12px space size 12px space size 12px a size 12px greater than size 12px 9 over size 12px 2 size 12px space size 12px และ size 12px space size 12px a size 12px less than size 12px minus size 12px 9 over size 12px 2
size 12px ด ั งน ั้ น size 12px space size 12px space size 12px จำนวนเต ็ มลบท ี่ มากท ี่ ส ุ ดท ี่ ทำให ้ size 12px space size 12px a to the power of size 12px 2 size 12px x to the power of size 12px 2 size 12px plus size 12px 9 size 12px x size 12px plus size 12px 1 size 12px space size 12px ไม ่ ม ี คำตอบเป ็ นจำนวนจร ิ ง size 12px space size 12px ค ื อ size 12px space size 12px a size 12px equals size 12px minus size 12px 5 มีค่าต่ำสุดสัมพัทธ์เท่ากับข้อใดต่อไปนี้

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