Question

Determine the AP whose third term is 5 and 7th term is 9​

Answer 1

Answer:

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Answer 2

a3 = 5 , a7 = 9

a + 2d = 5

a + 6d = 9

- - -

_________

-4d = -4

d = -1

From eqn 1.

a + 2×1 = 5

a + 2 = 5

a = 3

A.P. 3,4,5,6....