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How to solve this trigonometric mathematic function? (Details inside)

Asked by silverangel (939points) December 9th, 2011

arcsin(0.5)-arcsin(-0.5)?
My problem is that I don’t know how to solve questions involving arcsin, arccos or arctan…
PS: I don’t need the final answer, I just need the first few steps with explanation if possible.
Thanks in advance :)

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