how do I know which n to use, I see a lot of people going up to sin^7/7! but why 7?

how do I know which n to use, I see a lot of people going up to sin^7/7! but why 7?

I got an answer. I want to make sure it's correct.

How do you do this ,and what is the answer?

I got an answer but I want to make sure it is correct. Thank you for who can help me.

Please try again, keeping in mind that the centroid (x, y) is given by x = 1 A b x[f1(x) − f2(x)]dx a and y = 1 A b 1 2 [f1(x)]2...

I need to integrate from 0-t. I am told to set u= Erf and u'= (2e^-x^2)/pi^1/2. v' is 1 and v=x. i am also told that the answer is t Erf(t)+ ((e^-t^2)-1)/pi^1/2 how many...

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