View of In an A.P (of even no. of terms) sum of all product of term taken equidistant from end and beginning is given by n?a^2+{2n-1}(3a+(n-1)d}d/3?

Return to Article Details In an A.P (of even no. of terms) sum of all product of term taken equidistant from end and beginning is given by n?a^2+{2n-1}(3a+(n-1)d}d/3? Download