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find the sum of first 99 natural no.s.(arithmetic progression)

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3 years ago

Abu Azbar
39 Points
```							n=99Therefore : S = n/2(2a+(n-1)d)                         = 99/2(2*1+(91-1)1)                         = 99/2 *92                         = 99*46                         = 4554Therefore the sum of first 99 natural numbers is 4554
```
3 years ago
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• 731 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions