Saved Bookmarks
| 1. |
2.If α, β are the roots of quadratic equation x2 + px + q = 0 and y, δ are the roots of x2 + px-rao,en (α-y). (α-8) is equal to : |
|
Answer» x2+px+q=0 have roots a,b a=b=-p --(1) ab = q --(2) a2+pa+q=0 --(3) x2+px−r=0 have roots g,d g+d=-p --(4) gd = -r --(5) (a-g)(a-d) = a2−(g−d)a+gd = a2+pa−r = -q-r =-(q+r) --from (3) Therefore -(q+r) id the answer. answer phele hi MIL gya but thanks |
|