A) \[1\le x\le 5\]
B) \[x\le 1\]
C) \[x\ge 1\]
D) All values of x
Correct Answer: D
Solution :
\[f(x)=1-{{x}^{3}}-{{x}^{5}}\] Þ \[{f}'(x)=-3{{x}^{2}}-5{{x}^{4}}\] \[{f}'(x)<0\] for all values of x.
You need to login to perform this action.
You will be redirected in
3 sec
