Math, asked by lalithashetty0548, 5 months ago

In an A.P 19th term is 52 and 38th term is 128 find the sum of first 56 terms

Answers

Answered by preetam21122044

1

Answer:

5040

Step-by-step explanation:

a+18d=52

a+37d=128

d=4

a=(-20)

Sum=5040

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