Math, asked by EshaxYuta6872, 1 year ago

(cos square theta -1)×(cot square theta 1
+1) = -1

Answers

Answered by mehakm1510

0

Answer:

(cos²Ф - 1) × (cot²Ф + 1) = -1

LHS :

(cos²Ф - 1) × ( cosec²Ф)

(cos²Ф - 1)× (1/sin²Ф)

cos²Ф - (sin²Ф + cos²Ф) / sin²Ф (sin²Ф + cos²Ф = 1 )

cos²Ф - sin²Ф - cos²Ф/ sin²Ф

= - sin²Ф/sin²Ф

= -1 = RHS

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