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```
Find the principal solution of sin theta = sin2 theta

```
one year ago

## Answers : (2)

Saurabh Koranglekar
8397 Points
```							Dear studentExpand rhs as 2 sin( theta) cos ( theta)Now eqn is cos(theta) = 1/2Or sin (theta ) = 0Principal solutions 0, 60, 180, 300, 360Regards
```
one year ago
Arun
24737 Points
```							 Dear student sin x = sin 2x sin x = 2 sin x cos x sin x ( 1 – 2 cos x) = 0 sin x = 0or cos x = ½ hence x = 0, pior x = 330
```
one year 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