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What is the value of [cos (90+ A)div sec...

What is the value of `[cos (90+ A)div sec (270-A)]+[sin(270 + A)div cosec (630 -A)]` ?
`[cos (90+ A)div sec (270-A)]+[sin(270 + A)div cosec (630 -A)]` का मान क्या है?

A

3 sec A

B

tan A secA

C

1

D

0

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CHAMPION PUBLICATION-2017 TIER-II PAPER(9)-EXERCISE
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