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$\sec\left(x\right)$
Learn how to solve integral calculus problems step by step online. sec x =\frac{cos x}{2\left(1+ sen x\right)}+\frac{cos x}{2\left(1- sen x\right)}. Math interpretation of the question. Find the integral. We can solve the integral \int\sec\left(x\right)dx by applying the method Weierstrass substitution (also known as tangent half-angle substitution) which converts an integral of trigonometric functions into a rational function of t by setting the substitution. Hence.