If `alpha, beta ` be the zeros of the polynomial ` 2x^(2)+5x+k` such that ` alpha^(2)+beta
Channel: Doubtnut
Date: 2020-01-03

If `alpha, beta ` be the zeros of the polynomial ` 2x^(2)+5x+k` such that ` alpha^(2)+beta^(2)+ alpha beta = (21)/4 ` then k= ?