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For 0 lt theta lt pi/2 , the solution (s...

For `0 lt theta lt pi/2` , the solution (s) of
`sum_(m=1)^6cosec(theta+((m-1)/4)cosec(theta+(mpi)/4)4sqrt(2)" "` is/are.

A

`pi/4`

B

`pi/6`

C

`pi/(12)`

D

Not of these

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The correct Answer is:
C
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For 0 lt theta lt pi/2 , the solutions of sigma_(m-1)^(6)"cosec"(theta+((m-1)pi)/4)" cosec "(theta+(mpi)/4)=4sqrt(2) is (are):

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