Math, asked by jais879473, 8 months ago

cos 15° cos 35° cesec55° cos60° cosec 75°=1/2

Answers

Answered by sindhu1251
0

Step-by-step explanation:

cos15 cos35 cosec55 cos60 cosec75 = 1/2

cos15 cosec75 cos35 cosec55 cos60 = 1/2

cos(90-75) cosec75 cos(90-55) cosec55 cos60=1/2

sin75 1/sin75 sin55 1/sin55 cos60 = 1/2 (cosec = 1/sin)

cos60 = 1/2

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