What is the derivative of cos(x+isin(x)) ?

The derivative of cos(x+isin(x)) is -sin(x)+icos(x)

What is the first derivative of cos(x+isin(x)) ?

The first derivative of cos(x+isin(x)) is -sin(x)+icos(x)

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\frac{d}{d x} (cos (x) + i sin (x))

- sin (x) + i cos (x)

Solution steps

\frac{d}{d x} (cos (x) + i sin (x))

Apply the Sum/Difference Rule:

(f \pm g)^{'} = f^{'} \pm g^{'}

= \frac{d}{d x} (cos (x)) + \frac{d}{d x} (i sin (x))

\frac{d}{d x} (cos (x)) = - sin (x)

\frac{d}{d x} (i sin (x)) = i cos (x)

= - sin (x) + i cos (x)

y = x^{3} - 3 x + 2, (2, 4)

\int_{- \infty}^{- 1} e^{- 2 x} d x

\int \frac{3 x ^{3} - 3 x ^{2} + 1}{x ^{2} - x} d x

\int x arcsin (d) x d x

\frac{d}{d x} (- 7 ln (3 x + 4))

What is the derivative of cos(x+isin(x)) ?
The derivative of cos(x+isin(x)) is -sin(x)+icos(x)
What is the first derivative of cos(x+isin(x)) ?
The first derivative of cos(x+isin(x)) is -sin(x)+icos(x)