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-8cot square A + 8 cosec square A​
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4 votes
-8cot square A + 8 cosec square A​

User Tibbon
by
7.8k points

1 Answer

6 votes

Answer:

8

Explanation:

Using the identity

cosec²A = 1 + cot²A

- 8cot²A + 8cosec²A

= - 8cot²A + 8(1 + cot²A)

= - 8cot²A + 8 + 8cot²A

= 8

User Rich Sutton
by
7.8k points
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