If the sum of p terms of an A.P. is q and the sum of q terms is p, then the sum of `p+q` terms will be

If the sum of p terms of an A.P is equal to sum of q terms (p != q) then the sum of (p + q) terms is

If the sum of m terms of an A.P. is same as the sum of its n terms, then the sum of its (m+n) terms is

If the pth term of an A.P. is q and the qth term is p , then find its rth term.

The first and last term of an A.P. are 1 and 11. If the sum of its terms is 36, then the number of terms will be

Sum of n-terms of a G.P. is ___.

If the sum of first p terms of an A.P. is equal to the sum of the first q terms, then find the sum of the first (p + q) terms.

The first term of an A.P. is a and the sum of first p terms is zero, show tht the sum of its next q terms is (a(p+q)q)/(p-1)dot

The pth term of an A.P. is a and qth term is bdot Then find the sum of its (p+q) terms.

If the p^(th) term if an A.P. is q and the q^(th) term of an A.P is p then the r^(th) term is

If the sum of n terms of an A.P is cn (n-1)where c ne 0 then the sum of the squares of these terms is