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`        if 9th term of an A.P. is zero,prove that 29th term is double than the 19th term`
one year ago

## Answers : (1)

Mohd Shoaib
21 Points
```							As a9 = o So, a + 8d = 0 a =  -8d............ ...(i)Now , a29 = a + 28d a29 = -8d + 28da29  = 20d................(ii)a19 = a+ 18da19 =  -8d + 18da19 = 10d.................(iii)Now from eq (ii) and (iii) 20d = 2* 10 da29 = 2*a19Hence proved......
```
one year ago
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• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions