Q. 235.0( 2 Votes )

# Mark the correct alternative in the following:

If in an A.P. and , where denotes the sum r terms of the A.P., then equals

A.

B. mnq

C.

D.

Answer :

Here, S_{n}=n^{2}q

Now, substituting n=q we get

S_{q}=q^{2}p=q^{3}

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