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OpenStudy (anonymous):
Given that sin(alpha)=2/3 and (alpha) is in Q1 and tan(beta)=3 and (beta) is in Q3, find the exact value for each of the following: a. cos(beta) b. tan(alpha) c. cos(alpha+beta) d. cos(beta/2) tan(2beta). All I need is how to find the values of cos beta, sin beta, tan alpha, and cos alpha and I can do the rest.
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OpenStudy (mertsj):
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