Math, asked by salmanfarwa, 7 months ago

Find the sum of first 20 term AP of 2,7,12............

Answers

Answered by Anonymous

0

Answer:

990

Step-by-step explanation:

Sn= n/2 (2a+(n-1)d)

here Sn is sum of series which we have to find

n is no. of terms=20 (given)

a is first no. of series= 2(given)

d is difference between consequent no.=5(given)

use formula to get ans

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