Math, asked by nihalg22, 8 months ago

0)
( CBSB 2012)
17. Prove that:
cot A - cos A cosec A-1
cot A +cos A cosec A+ 1
[CBSE 2014
18. Prove that:
sin 0 - cos 0 + 1
1
sin + cos 0 -1 sec 0 - tan
using the identity sec 0 = 1 + tanº.
(CBSE 2014
19. Prove that:
cot A + cosec A-1
cot A - cosec A +1
1 + cos A
sin A
[CBSE 2012​

Answers

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1

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