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

The derivative of cos(x-2tan(x)) is -sin(x)-2sec^2(x)

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

The first derivative of cos(x-2tan(x)) is -sin(x)-2sec^2(x)

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

- sin (x) - 2 sec^{2} (x)

Solution steps

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

Apply the Sum/Difference Rule:

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

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

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

\frac{d}{d x} (2 tan (x)) = 2 sec^{2} (x)

= - sin (x) - 2 sec^{2} (x)

\frac{1}{( x + 1 ) ^{2}}

x \to 5 lim (- 5 x^{2})

i = 1 \sum \infty (\frac{3}{2})^{i}

What is the derivative of cos(x-2tan(x)) ?
The derivative of cos(x-2tan(x)) is -sin(x)-2sec^2(x)
What is the first derivative of cos(x-2tan(x)) ?
The first derivative of cos(x-2tan(x)) is -sin(x)-2sec^2(x)