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IF sin theta = sin 15^@ + sin 45^@...

IF ` sin theta = sin 15^@ + sin 45^@ ,` where `0^@ lt theta lt 90 ^@ `, then ` theta ` is equal to

A

`45^@`

B

`54^@`

C

`60^@`

D

`75^@`

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The correct Answer is:
D
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