If a and b are fixed non-zero constants, then the derivative... | Mathematics | SolveeIt | Solveeit

Today, August 18

Question

If a and b are fixed non-zero constants, then the derivative of $\frac{a}{x^4}-\frac{b}{x^2}$ + cos x is ma + nb - p where

A

m = 4x3; $n=\frac{-2}{x^3}$ ; p = sinx

B

$m =\frac{-4}{x^5}$ ; $n=\frac{2}{x^3}$ ; p = sinx

C

$m =\frac{-4}{x^5}$ ; $n=\frac{2}{x^3}$ ; p = -sinx

D

m = 4x3; $n=\frac{2}{x^3}$ ; p = -sinx

Answer

$m =\frac{-4}{x^5}$ ; $n=\frac{2}{x^3}$ ; p = sinx

Explanation

Solution

The correct answer is () :