Write the sum without actual addition 1+3+5+7____+19
Answers
Answered by
1
Answer:
without actual addition of odd no. till 19 we will get 100
Answered by
3
Answer:
100
Step-by-step explanation:
Given AP with:
- first term =1
- common difference = 2
- number of terms = (1+19)/2= 10
Sum of terms:
- S = 1/2 × (1+19) × 10= 100
Answer: 100
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