MCQ
The function $f(x)=9-x^5-x^7$ is decreasing for
  • A
    5 ≤ x ≤ 7
  • B
    x ≥ 1
  • C
    x ≤ 1
  • All values of x

Answer

Correct option: D.
All values of x
D

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free