Math, asked by kaifchoudhary84, 1 year ago

The first term of an A.P. is 5 and the common difference is 4. Complete the following activity and find the sum of the first 12 terms of the A.P. a=5,d=4,s¹²=?

Answers

Answered by Jk15

as it is activity based question you should send full question
sorry t12 is 49
So 6× 54
324

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kaifchoudhary84: Ohh sorry thank you so much for helping me mam

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Answered by Pradeepsakthi

a=5

d=4

sum of first n terms =n/2(2a+(n-1)d)

12/2(2*5+11*4)

6(10+44)

6×54

324

kaifchoudhary84: Thank you so much for helping me sir

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