Question

Find the sum of first 22 terms of an AP in which d= 7 and 22nd term is 149​

Answer 1

Step-by-step explanation:

Find the sum of first 22 terms of an AP in which d= 7 and 22nd term is 149 Mark me brainlest

Answer 2

Answer:

1661

Step-by-step explanation:

a 22

=149=a+7×21

⇒149−147=2=a

Now, S22 =22/2 (2+149)=11×151=1661

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