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Sec? A e Cosecca-42) )find고 A |
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Answer» 2A is measure of acture ANGLE 2A∠90 ∘ ⇒A∠45 ∘ sec2A=cosec(A−42)cos(2A)1 = SIN(A−42)1 sin(A−42)=cos(2A)=sin(90−2A)(∵2A∠90 ∘ )⇒sin(A−42)=sin(90−2A)⇒A−42=90−2A3A=132A= 3132 =44 ∘ |
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