Math, asked by bt754702, 3 months ago

In an AP a=-6& D=2 find the sum of 1st 20terms

Answers

Answered by himanshuthegreat456

1

Answer: 260

Step-by-step explanation:

Sum of AP = n/2 (2a + (n-1)d)

Sum = 10 ( -12 + (19)2)

Sum = 10 (-12 + 38)

Sum = 10 (26)

Sum = 260

Hope it helps, plz mark as brainliest

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