8cot ^(2) A-8 cosec ^(2)A is equal to...

`8cot ^(2) A-8 cosec ^(2)A ` is equal to

A

8

B

`1/8`

C

`-8`

D

`-1/8`

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X BOARD PREVIOUS YEAR PAPER ENGLISH-CBSE BOARDS 2020-QUESTION

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