Find the derivative of $f ( x ) = \cos x - \sin x$
A) $\sin x + \cos x$

B) $- \sin x + \cos x$

C) $\sin x - \cos x$
D) $- \sin x - \cos x$
E) $2 \sin x$
F) $2 \cos x$
G) $- 2 \sin x$

H) $- 2 \cos x$

Question

Find the derivative of $f ( x ) = \cos x - \sin x$
A) $\sin x + \cos x$

B) $- \sin x + \cos x$

C) $\sin x - \cos x$
D) $- \sin x - \cos x$
E) $2 \sin x$
F) $2 \cos x$
G) $- 2 \sin x$

H) $- 2 \cos x$

Quizplus · Accepted Answer

The derivative of $\cos x$ is $-\sin x$ and the derivative of $-\sin x$ is $-\cos x$. Therefore, the derivative of $f(x) = \cos x - \sin x$ is $-\sin x - \cos x$.

Find the Derivative Of f(x)=cos⁡x−sin⁡xf ( x ) = \cos x - \sin xf(x)=cosx−sinx

Find the Derivative Of $f ( x ) = \cos x - \sin x$