\( \int _{}^{}\frac{\sec (x)^{3}}{\tan (x)} d x \)
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Bonus Knowledge
To solve \( \int \frac{\sec^3(x)}{\tan(x)} \, dx \), we can use a substitution. Let \( u = \tan(x) \). Then, the derivative \( du = \sec^2(x) \, dx \), and we can express \( \sec^3(x) \) in terms of \( u \): \( \sec^3(x) = (1 + u^2)^{3/2} \). The integral transforms into \( \int \frac{\sec^3(x)}{u} \, du \), which can be simplified further. Now, evaluate the integral: \[ \int \sec^3(x) \, \frac{du}{u} \] where you'll likely end up with logarithmic expressions after integration. Alternatively, express \( \sec^3(x) \) as \( \sec^2(x) \sec(x) \) and simplify accordingly to arrive at a solution. As you integrate, keep track of constants and remember to back-substitute \( u = \tan(x) \) at the end to express in terms of \( x \). Would you like help walking through the actual integration process?
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