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Evaluate: cot 30 degree- cot 75 degree/tan 15 degree -tan 60 degree
Evaluate: cot 30 degree- cot 75 degree/tan 15 degree -tan 60 degree

```
3 years ago

Arun
25768 Points
```							As we knowCot 30 = cot (90-60)But cot(90-60) = tan60SimilarilyCot75 = cot (90-15) = tan15Hence question becomes like below, (tan 60 - tan15)/(tan15 - tan60)= -1Hope it helps
```
3 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