Math, asked by Xx0Abhishek0xX, 9 months ago

7. cosec A (1 + cos A) (cosec A - cot A) = 1

Answers

Answered by manishm758

6

Step-by-step explanation:

plz see the screenshot and mark it as brainliest.

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Answered by psupriya789

1

Answer:

LHS = cosecA (1-cos A) (cosec A + cot A)

= (cosecA-cosecAcosA)(cosecA+cotA)

= (cosecA-cotA)(cosecA+cotA)

[ Since , cosecAcosA = cosA/sinA = cotA ]

= cosec²A - cot²A

= 1

[ Since , cosec²A - cot²A = 1 ]

= RHS

Hope it helps u

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