Please help 1/sqrt(a-x^2) is it sin^-1(x/sqrt(a)) ?
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Originally Posted by tennis14321 Please help 1/sqrt(a-x^2) is it sin^-1(x/sqrt(a)) ? So close! Just remember that $\displaystyle \frac{1}{\sqrt{a}}$ out front.
Thank you, I didn't get the same result as the book for the problem at the end.
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