let x1>x2>x3>x4>x5>x6>0, andA= x1+x2+.......+x6B= x1x3+x3x5+x1x5+x2x4+x2x6+x4x6C= x1x3x5+x2x4x6,then the equation 2x^3 - Ax^2 + Bx - C = 0 has1. exactly one real root2. three positive roots3. three negative roots4. none of these

VIVEK SINGH , 14 Years ago

Grade 11