Q. 245.0( 4 Votes )

If tn be the nth term of an A.P. such that find .

Answer :


To find:

We know that,

tn = a + (n – 1)d


3(a+3d) = 2(a+6d)

3a + 9d = 2a + 12d

3a – 2a = 12d – 9d

a = 3d …(i)

Now, [from (i)]

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