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If sqrt(2) cos A=cosB+cos^(3)B, and sqrt...

If `sqrt(2) cos A=cosB+cos^(3)B,` and `sqrt(2)sinA=sinB-sin^(3)B ` then `sin(A-B)=`

A

`(1)/(2)`

B

`(1)/(3)`

C

`-(1)/(2)`

D

`-(1)/(3)`

Text Solution

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The correct Answer is:
B, D
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