Question

Q1. If in an A.P Sn =qn2& Sm=qm2, where Sr denotes the sum of r terms of the
A.P, then Sq equals to
A) q3/2
B) mnq
C) q3
D) (m+n)q2​

Answer 1

Answer:

7 year old x2 + y2 - 4x – 2y + 4