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Grade: 12th pass
        
Sin(x-y)=cos(x+y)=1/2 
=Sin(x-y)=1/2
=Sin(x-y)=30°
=(X-y)=30°----(1)
Cos(x+y)=1/2
=Cos(x+y)=60°
=(X+y)=60°-----(2)
1or2----
(X-y)=30°
(X+y)=60°
2 months ago

Answers : (2)

Saurabh Koranglekar
askIITians Faculty
8387 Points
							Dear student

Please attach the image of the question

Regards
2 months ago
Abdul Rahman
29 Points
							

sin(x-y)=1/2

sin(x-y)= sin300

x-y =300--------1

and cos(x+y) =1/2

       cos(x+y) = cos600

         x+y = 600----------2

on adding 1 & 2, we get,

2x = 900

x = 450

and on subtracting 1 & 2, we get,

-2y = -300

 y = 150

2 months ago
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