Math, asked by yogisrinivas2257, 1 year ago

Write the value of cos 2Q-1uponsin2Q

Answers

Answered by ashutoshkapoorp9osgk
1
cos²∅-1/sin²∅

using sin²∅+cos²∅=1

cos²∅-1=-sin²∅

therefore -sin²∅/sin²∅

=-1
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