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The values of theta satisfying "sin" 7 t...

The values of `theta` satisfying `"sin" 7 theta = "sin" 4 theta -"sin" theta " and " 0 lt theta lt (pi)/(2)` are

A

`(pi)/(9), (pi)/(4)`

B

`(pi)/(3), (pi)/(9)`

C

`(pi)/(6), (pi)/(9)`

D

`(pi)/(3), (pi)/(4)`

Text Solution

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The correct Answer is:
A
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