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If 0 lt theta(2) lt theta(1) lt pi/4, co...

If `0 lt theta_(2) lt theta_(1) lt pi/4, cos (theta_(1) + theta_(2)) = 3/5` and `cos(theta_(1)-theta_(2))=4/5`, then `sintheta_(1) sintheta_(2)` equal to

A

`-1`

B

1

C

2

D

`-2 `

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The correct Answer is:
B
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