Integral of sec^2(x)tan(x) - Integral example

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This video shows how to find the integral of Integral of sec^2(x)tan(x).
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this broke my neck but still thank you!!

tan
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There is also another answer to this integral, which is (sec(x))^2/2+C. We can split this integral as tan(x)sec(x)sec(x). From there, we can use u-sub by letting u=sec(x), so du=sec(x)tan(x). According to the other answer, they both have the same derivative and are off by the constant.

justabunga
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But it isn't the answer of my question 🙄

Sakshi_
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pero esa integral tiene 2 rptas, ya q si las 2 rptas lo derivas, sale lo q integré, esta bien o mal?

bryanjairchavezcieza