What is the derivative of 1-2cos(x) ?

The derivative of 1-2cos(x) is 2sin(x)

What is the first derivative of 1-2cos(x) ?

The first derivative of 1-2cos(x) is 2sin(x)

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\frac{d}{d x} (1 - 2 cos (x))

2 sin (x)

Solution steps

\frac{d}{d x} (1 - 2 cos (x))

Apply the Sum/Difference Rule:

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

= \frac{d}{d x} (1) - \frac{d}{d x} (2 cos (x))

\frac{d}{d x} (1) = 0

\frac{d}{d x} (2 cos (x)) = - 2 sin (x)

= 0 - (- 2 sin (x))

Simplify

= 2 sin (x)

What is the derivative of 1-2cos(x) ?
The derivative of 1-2cos(x) is 2sin(x)
What is the first derivative of 1-2cos(x) ?
The first derivative of 1-2cos(x) is 2sin(x)