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OpenStudy (anonymous):
Find the value of sin(α/2) if cos α=12/13 (where 0° < α < 90°.)...
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hartnn (hartnn):
use the identity \(sin^2x+cos^2x=1\)
OpenStudy (anonymous):
mmhh....let me see
hartnn (hartnn):
did u get your answer?
OpenStudy (anonymous):
ooh yeah i am now heading towards the answer..thanks
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