Skip to content
CalcGospel 國際數學圖譜
返回

CIE 9709 2023 June Paper 13 Q2

A Level / CIE / P1

CIE 9709 2023 June Paper 13 Paper · Question 2

题目

Problem

The function ff is defined for xRx \in \mathbb{R} by f(x)=x26x+cf(x) = x^2 - 6x + c, where cc is a constant. It is given that f(x)>2f(x) > 2 for all values of xx.

Find the set of possible values of cc.

[4]
题目中文翻译

函数 ffxRx \in \mathbb{R} 上定义,且 f(x)=x26x+cf(x) = x^2 - 6x + c,其中 cc 为常数。已知对所有 xx 的值都有 f(x)>2f(x) > 2

cc 的可能取值范围。

[4]

解答