If value of cos A=5/13 then value of sin A is
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Given,
cosA=5/13=adjacent/hypothenuse
sinA=opposite/hypothenuse
(hyp)²=(adj)²+(opp)²
So now let's substitute the values
(13)²=(5)²+(opp)²
169=25+(opp)²
(opp)²=169-25=144
opp=12
hence,Sin A = 12/13
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