Question

If a and b are zeroes of polynomial 2x2-4x+5,find valies of

Answer 1

a,b=(4±{16-4*2*5}^¹/²)/2×2

=(4±{-4}^¹/²)/4

=(1±2¡/4)

=(1±1¡/2)

so,roots of equation are (1+1/2¡)&(1-1/2¡)

where ¡=iota