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The value of sin ( 67 (1@)/2 ) sin ( 22 ...

The value of sin `( 67 (1_@)/2 ) sin ( 22 (1_@)/2)` is

A

`-2sqrt2`

B

`2sqrt2`

C

`1//2sqrt2`

D

`-1//2 sqrt2`

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The correct Answer is:
D
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