Math, asked by rischin30, 1 year ago

if in an ap if the 12th term is 13 and the sum of its first four terms is 24, find the sum of its first 10 terms​

Answers

Answered by lakshya2128
0

Answer:

For the 12th terms

-13 = a1 + 11d

-13 - 11d = a1

For the sum of four

24 = (4/2)(2(-13 - 11d) + 3d))

24 = 2(2(-13 - 11d + 3d)

12 = 2(-13 - 8d)

12 = -26 - 16d

38 = - 16d

Answered by Anonymous
3

Answer:

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