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If sqrt2 cos A = cos B + cos^(3) B "and"...

`If sqrt2 cos A = cos B + cos^(3) B "and" sqrt2 sin A = sin B - sin^(3) B, "then the value of" sin (A - B) "will be"`

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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