# maths

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the 8th term of an a.p is 37 and 12th term is 57 .find the a.p

• maths -

8th term is 37 ----> a+7d = 37
12th term is 57 ---> a + 11d = 57

subtract them:
4d = 20
d = 5

into a+7d=37
a+35=37
a = 2

A.P. is 2 7 12 17 ....

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