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$\int\frac{\sec\left(x\right)}{\tan\left(x\right)}dx$
Learn how to solve integral calculus problems step by step online. Integrate the function sec(x)/tan(x). Find the integral. Apply the trigonometric identity: \frac{\sec\left(\theta \right)}{\tan\left(\theta \right)}=\csc\left(\theta \right). The integral of \csc(x) is -\ln(\csc(x)+\cot(x)). As the integral that we are solving is an indefinite integral, when we finish integrating we must add the constant of integration C.