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Resuelva la siguiente integral \( \int \tan (5 x) \sec ^{2}(5 x) d x \)

Ask by Coleman Lewis. in Mexico
Mar 13,2025

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Answer

La integral \( \int \tan(5x)\sec^{2}(5x)dx \) es igual a \( \frac{1}{10}\sec^{2}(5x) + C \), donde \( C \) es una constante.

Solution

Calculate the integral \( \int \tan(5x)\sec^{2}(5x)dx \). Evaluate the integral by following steps: - step0: Evaluate using formulas and rules: \(\int \tan\left(5x\right)\sec^{2}\left(5x\right) dx\) - step1: Evaluate the integral: \(\frac{\sec^{2}\left(5x\right)}{2\times 5}\) - step2: Multiply the numbers: \(\frac{\sec^{2}\left(5x\right)}{10}\) - step3: Simplify the expression: \(\frac{1}{10}\sec^{2}\left(5x\right)\) - step4: Add the constant of integral C: \(\frac{1}{10}\sec^{2}\left(5x\right) + C, C \in \mathbb{R}\) La integral \( \int \tan (5x) \sec ^{2}(5x) d x \) se resuelve a \( \frac{1}{10}\sec^{2}(5x) + C \), donde \( C \) es una constante real.

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¡Claro! Vamos a resolver la integral \( \int \tan(5x) \sec^2(5x) \, dx \). Primero, recuerda que la derivada de \(\tan(u)\) es \(\sec^2(u)\) y, en este caso, \(u = 5x\). Esto nos da una pista: podemos hacer una sustitución. Definimos \(u = \tan(5x)\). Entonces, la derivada de \(u\) respecto a \(x\) es \( \frac{du}{dx} = 5 \sec^2(5x) \), lo cual implica que \(du = 5 \sec^2(5x) \, dx\), o reescribiéndolo, \(dx = \frac{du}{5 \sec^2(5x)}\). Sustituyendo en la integral, tenemos: \[ \int \tan(5x) \sec^2(5x) \, dx = \int u \cdot \frac{du}{5} = \frac{1}{5} \int u \, du = \frac{1}{5} \cdot \frac{u^2}{2} + C = \frac{1}{10} \tan^2(5x) + C. \] Por lo tanto, el resultado es: \[ \int \tan(5x) \sec^2(5x) \, dx = \frac{1}{10} \tan^2(5x) + C. \]

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