Math, asked by richasingh97666, 2 months ago

what is the sum of the first 20 term of an ap if a=4andt20=36

Answers

Answered by aditigupta85

0

Answer:

Sum of first 20 terms = 400

Step-by-step explanation:

Given - a = 4

20th term = 36

We know

Sum = n/2 ( a + l)

Sum = 20/2 ( 4+36)

Sn = 10× 40

Sn = 400

Answered by csbarath

0

answer

400

explanation

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