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Let P=sin 25^(@) sin 35^(@)sin 60^(@) si...

Let `P=sin 25^(@) sin 35^(@)sin 60^(@) sin 85^(@)` and `Q=sin20^(@)sin40^(@)sin 75^(@) sin 80^(@)`. Which of the following relation (s) is (are) correct ?

A

`P+Q=0`

B

`P-Q=0`

C

`P^(2)+Q^(2)=1`

D

`P^(2)-Q^(2)=0`

Text Solution

Verified by Experts

The correct Answer is:
B, D
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