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`        If tan x = a/b , proove   sine square x + cos square x=1`
2 years ago

Arun
23385 Points
```							Dear Kamal If tan x = a/bThen sin x = a/sqrt(a²+b²)cos x = b/ sqrt(a²+b²) Hencesin²x = a²/(a²+b²)cos²x = b²/(a²+b²) Now sin²x + cos²x = (a²+b²)/(a²+b²) = 1  RegardsArun (askIITians forum expert)
```
2 years 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