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In △ABC, ∠C = 90◦ and sinA = 2sinB. Find sinA and sinB

 

 In△ABC,CA=CB=3 and AB=2.Find sinC.

 Jun 6, 2020
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Sin a = 2 sin(90-a)

sina= 2cosa

sina/cosa = tana = 2

arctan(2)= 63.43o=a.      b= 90-a==26.56o

 Jun 6, 2020

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