Question

Determine the rth term of an

a.p. whose 6th term is 12 and 8th term is 22?

Answer 1

Hii..

Answer is in Attachment ↘️⬇️↙️

Hope this helps :)

Answer 2

Hey friend...!! here's your answer
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an = a + (n - 1) d

So,

a6 = a + 5d = 12_________(1)

a8 = a + 7d = 22 _______(2)

By solving eq. 1 and 2


We get ,
d = 5

Put the value of d in any eq.

From (1)
.

a + 5(5) = 12
a = - 13

So that a = - 13 and d = 5

A.P = -13 , -8 , -3 , 2 ,...........

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#Hope its help