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Arcsin(x)/arccos(x) does not equal arctan(x).. why?

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because the only relation we know is sin(x)/cos(x)=tan(x) but we dont know the behavior of the inverses of these functions. to prove it's wrong just find a counterexample, like x=23 and use your calculator.

by Ervin 2 years ago

Two small spheres placed 20 cm apart have equal charge (Physics question)

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A long straight wire carries a current I1. A short segment of another wire of length L is orient...

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