With the help of right angle triangle find the value of sin 30 , cos 60
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because sin=Opp.angle/ hypotenuse
so. sin30 = X/2x
so. sin30 =1/2
because cos=adj.angle/hypotenuse
so cos 60= X/2x
so. cos60 =1/2
so. sin30 = X/2x
so. sin30 =1/2
because cos=adj.angle/hypotenuse
so cos 60= X/2x
so. cos60 =1/2
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