Home
Class 12
MATHS
If 8f(x)+6f(1/x)=x+5 and y=x^2(f(x), the...

If `8f(x)+6f(1/x)=x+5` and `y=x^2(f(x),` then `(dy)/(dx)` at `x=-1` is equal to

A

0

B

`1/14`

C

`-1/14`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

If y={f(x)}^(phi(x)),"then"(dy)/(dx) is

If y=f((2x-1)/(x^(2)+1)) and f^'(x)=sinx^(2) , then (dy)/(dx) is equal to

If y=f((2x+3)/(3-2x)) and f(x)=sin(logx) , then (dy)/(dx)=

If y=f((3x+pi)/(5x+4)) and f'(x)=tan^2 x , then (dy)/(dx) at x=0 is

If y=f(x^3),z=g(x^5),f'(x)=tanx and g'(x)=sec x , then (dy)/(dz) =

If f(x) = 1/(1-x) , then f(f(f(x))) is equal to

If intf(x)dx=f(x), then int{f(x)}^2dx is equal to

If f(x) = (x-1)/(x+1) , then f(2x) is equal to

If f'(x)=x^2+5 and f(0)=-1 then f(x)=