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Mathematics 11 Online
OpenStudy (anonymous):

Find the value of sin(α/2) if cos α=12/13 (where 0° < α < 90°.)...

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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