Problem: Attempt: u = du = v = dv = Focusing on u = du = v = dv = Focusing on Put everything back together Answer: Correct Answer: Where did I go wrong?
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Integrating sinx becomes -cosx, not cosx. I tried this problem, and I made a mistake somewhere because I got
Originally Posted by chengbin Integrating sinx becomes -cosx, not cosx. I tried this problem, and I made a mistake somewhere because I got Thanks, that was my problem(even though it was a derivative that didn't change into a negative)
Hello, Another method : And Hence What's good with this is that there is no need to integrate cos or sin, and mess up with the signs In the first quote : u = cos(x) du = sin(x) dx This is false, it's du=-sin(x) dx
How do you box your answer?
\boxed{ CONTENT } You can always quote a post to take a look at its contents (or click the latex image).
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