cot²a×cosec²b-cot²b×cosec²b=cot²a-cot²b
Answers
Answered by
8
Answer:
Step-by-step explanation:
L.H.S. :
= cot^2 A . cosec^2 B - cot^2 B . cosec^ A
= cot^2 A (1 + cot^2 B) - cot^2 B(1 + cot^2 A)
= cot^2 A + cot^2 A cot^2 B - cot^2 B - cot^2 B cot^2 A
= cot^2 A - cot^ B = R.H.S.
Hence proved.
Answered by
1
Answer:
mark me brainliest please
Attachments:
Similar questions