Question

find the derivative of sinx-cosxat x=o​

Answer 1

Explanation:

sinx=sin0=0

cosx=cos0=1

sinx-cosx

=sin0-cos0

=0-1

=-1

therefore, sinx-cosx , X=0 is -1

Answer 2

Explanation:

$\sin(x) - \cos(x) = 0 \\ x = 0 \\ \\ \sin(x) = \sin(0) = 0 \\ \cos(x ) = \cos(0) = 1 \\ \\ \sin(x) - \cos(x) = 0 \\ 0 - 1 = 0$

sin(x)-cos(x)=-1

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