Prove that Sin²∅Cot²∅+Sin²∅=1
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Hey there!
Given,
Sin²∅Cot²∅+Sin²∅=1
L.H.S:
Sin²∅. Cot²∅+Sin²∅
= Sin²∅ . cos²∅ / sin²∅ + sin²∅
= sin²∅.cos²∅/sin²∅ + sin²∅
= cos²∅ + sin²∅
= 1 {∵ cos²∅ + sin²∅ = 1}
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