Question

if m times the mth term is equal to n times its nth term prove that m+n th term equal to zero

Answer 1

If m times the n th term of an A.P. is equal to n times its nth term. Then show that m+nth term of A.P. is 0. edit Answer

Answer 2

hello there!!!!


Let ' a' be the first term and 'd ' be the common difference of AP.

Sm = m/ 2 [ 2a + (m-1)d ]

Sn = n/2 [ 2a +( n-1)d]

Now, Sm = Sn ( given)

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