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Grade: 10 

                        
The value of cos a/sin(90+a) +sin a/(sin (180+a) +cos (90+a)/tan a
3 years ago

Answers : (1)

Arun
24737 Points 
							
As we know
Sin(90+A) = cos A
Sin(180+A) = - sinA
Cos(90+A) = -sin A
Put thus conversion and find value
3 years ago
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