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Find the value of (cos^2 30^@-sin^2 30^@...

Find the value of `(cos^2 30^@-sin^2 30^@)/(sin^2 15^@+cos^2 15^@)` .
`(cos^2 30^@-sin^2 30^@)/(sin^2 15^@+cos^2 15^@)` का मान ज्ञात कीजिए।

A

`1/2`

B

1

C

`1- sqrt3`

D

0

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PINNACLE-TRIGONOMETRY-EXERCISE
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