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If |(cos(A+B),-sin(A+B),cos2B),(sinA,cos...

If `|(cos(A+B),-sin(A+B),cos2B),(sinA,cosA, sinB),(-cosA, sinA, cosB)|=0` then the value of B is -

A

`(2n+1)(pi)/(2)`

B

`npi`

C

`(2n+1)pi`

D

`2npi`

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The correct Answer is:
A
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