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# A doubt (Integration c4) Watch

1. Zacken Can you explain me perhaps why the 2nd one is correct, while the 1st one isn't?
Zacken Can you explain me perhaps why the 2nd one is correct, while the 1st one isn't?
They're both correct. Remember that sec^2 x + c = tan^2 x + 1 + c = tan^2 x + c'
3. (Original post by Zacken)
They're both correct. Remember that sec^2 x + c = tan^2 x + 1 + c = tan^2 x + c'
So if I were to evaluate this integral, I'd get the same final answer with either?
So if I were to evaluate this integral, I'd get the same final answer with either?
Yeah.
5. (Original post by Zacken)
Yeah.
Alright! Thank you.
Alright! Thank you.
No problem.

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