SOLUTION: Given sin β 5/13 in QII, find the exact value of the following:
a. sin(2β)
b. cos(2β)
c. tan(2β)
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Question 1177771: Given sin β 5/13 in QII, find the exact value of the following:
a. sin(2β)
b. cos(2β)
c. tan(2β)
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
sin b = 5/13
cos b = —12/13
tan b = —5/12
sin2b = —120/169
cos 2b = 2 cos^2 b —1 = 288/169 —1 = 119/169
tan 2 b = —5/6 / 1-25/144 = — 120/144 / 119/144
= -120/119
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