Question

y= sin x -4 cos x find differentiation by chain rule​

Answer 1

Answer:

y = sinx - 4 cos x

dy / dx = cos x - 4(-sin x )

dy / dx = cosx + 4 sinx

there is no requirement of chain rule here

chain rule is use when there is a composite function that is a function within a function

example

sin(3x2+5)

tan √x

Step-by-step explanation:

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