What is the integral of (sin(x))/(cos^3(x)) ?

The integral of (sin(x))/(cos^3(x)) is (tan^2(x))/2+C

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integral of (sin(x))/(cos^3(x))

\int \frac{sin ( x )}{cos ^{3} ( x )} d x

\frac{tan ^{2} ( x )}{2} + C

Solution steps

\int \frac{sin ( x )}{cos ^{3} ( x )} d x

Rewrite using trig identities

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

Apply u-substitution

= \int u d u

Apply the Power Rule

= \frac{u ^{2}}{2}

Substitute back

u = tan (x)

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

Add a constant to the solution

= \frac{tan ^{2} ( x )}{2} + C

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

y = arctan (4 t)

x \to 2 + lim (\frac{4 x}{x - 2})

x y^{^{'}} - 2 y = x^{2} - 2 x - 1

\frac{\partial}{\partial x} (cot (x y))

What is the integral of (sin(x))/(cos^3(x)) ?
The integral of (sin(x))/(cos^3(x)) is (tan^2(x))/2+C