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$\int\frac{\cos\left(x\right)^2}{\sin\left(x\right)^2}dx$
Learn how to solve integral calculus problems step by step online. Integrate the function (cos(x)^2)/(sin(x)^2). Find the integral. Applying the cotangent identity: \displaystyle\cot\left(\theta\right)=\frac{\cos\left(\theta\right)}{\sin\left(\theta\right)}. Apply the formula: \int\cot\left(\theta \right)^2dx=-\theta -\cot\left(\theta \right)+C. As the integral that we are solving is an indefinite integral, when we finish integrating we must add the constant of integration C.