Math, asked by divya2967, 10 months ago

3. Find the sum of first 20 terms of the A.P. 50, 46, 42, -

Answers

Answered by sweetheart296725

3

mate here is your answer,

a=50

d=-4

n=20

Sn=20/2(2*50+(20-1)-4)

=10(100-76)

=240

hope it will helpful for you

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