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`        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

Saurabh Koranglekar
8387 Points
```							Dear studentPlease attach the image of the questionRegards
```
2 months ago
Abdul Rahman
29 Points
```							sin(x-y)=1/2sin(x-y)= sin300x-y =300--------1and cos(x+y) =1/2       cos(x+y) = cos600         x+y = 600----------2on adding 1 & 2, we get,2x = 900x = 450and on subtracting 1 & 2, we get,-2y = -300 y = 150
```
2 months ago
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### Course Features

• 31 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions