Math, asked by YushraIqbal, 2 months ago

the su
Explain the double answer.
8. Find the sum of first 22 terms of an A.P. in which d = 7 and a22 is 149.

Answers

Answered by subash12340

3

Answer:

a22 =149

d = 7

a+ 21d = 149

a+21×7= 149

a + 147= 149

a= 2

s22 = 11 + 4 + 21×7

s22 = 15 +147

s22 = 162

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