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OpenStudy (anonymous):
I need just an explanation for something: For tan(π + arcsin(2/3)), I know you're supposed to use the equation for tan(a + b), but I don't know how to find the arcsin of 2/3 since it is not on the unit circle. I know you can just plug it into a calculator, but is that the only way to do it? Thanks to anyone who helps me out on this!! :D
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