Math, asked by Nishchay1234, 1 year ago

Tell me question no. 39
No Spam.
DETAILED SOLUTION.
(40 points, total spent, you will get 20!)
PIc is clear

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Answers

Answered by sangramjayasing
1
see the answer on above picture. if doubt ask me on7008716576
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Nishchay1234: Please explain me last second step..
sangramjayasing: we use the formula of AP. Sn=n(n+1)/2
Nishchay1234: what is AP
Nishchay1234: i have marked your answer brainliest
Answered by sudhanshudhek76
1

Answer:

answer is in attachment DON'TSPAM

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