Question

if the first term of an ap is -3and 7th term is 7 find 11th term​

Answer 1

Answer:

a = -3

a7 = a + 6d

7 = -3 + 6d

10 = 6d

d = 5/2

So,

a11 = -3 + (11-1)5/2

a11 = -3 + 25

a11 = 22

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