In an AP it is given that ` S_(n)=qn^(2)and S_(m) =qm^(2). " prove that " s_(q) = q^(3)`

If in an A.P, S_n=n^2p and S_m=m^2p , then prove that S_p is equal to p^3

If in an A.P.S_(n)=n^(2)p and S_(m)=m^(2)p, then S_(p) is equal to

If in an AP, S_(n)= qn^(2) and S_(m) =qm^(2) , where S_(r) denotes the of r terms of the AP , then S_(q) equals to

If in an AP, S_(n)= qn^(2) and S_(m) =qm^(2) , where S_(r) denotes the of r terms of the AP , then S_(q) equals to

For as Ap. S_(n)= m and S_(m) = n . Prove that S_(m+n)=-(m+n).(m ne n)

If in an A.P. S_(n) = qn^(2) and S_(m) = qm^(2) , where S_(r ) denotes the sum of r terms of the A.P. , then S_(q) equals :

If in an AP, S_(n)= q n^(2) and S_(m)= qm^(2) , where S_(r ) denotes the sum of r terms of the AP, then S_(q) equals to,

For an A.P., S_(1)=6 and S_(7)= 105 . Prove that S_(n): S_(n-3) = (n+ 3): (n-3)

If S_(m)=m^(2) p and S_(n)=n^(2)p , where m ne n in an AP then prove that S_(p) =P^(3)