Math, asked by manojsingh2986318, 9 months ago

If a=6, d=3 for an A.P; find S28.

Answers

Answered by yash50248

2

Answer:

s28=n/2(2a+(n-1)d=28/2(2×6+(28-1)3=14+27×3+12 =107

Answered by Anonymous

1

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