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How to solve please help ........,..,.......,...........

How to solve please help ........,..,.......,...........

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Grade:11

1 Answers

Arun
25750 Points
4 years ago
 
Dear student 
 
½ cos^2 a sin^2 @ = 1/8
4 cos^2 @ sin^2 @ = 1
 
sin^2 2@ = 1
 
2@ = 90
@ = 45 degree
 
Hence option D is corrcet.

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