Question

If alpha, beta are the zeros of polynomial FX = 2 X square + X + 1 then one by beta plus one by alpha is equal to
A----- 0
B----- 1
C----- -1
D------ none of these

Answer 1

Answer:

Step-by-step explanation:

Comparing the equation with standard form

a=2;b=1;c=1

1/alpha + 1/beta

=(alpha+beta)/alpha×beta

=(-b/a)/(c/a)____alpha +beta=-b/a

Alpha×beta=c/a

=(-1/2)/(1/2)

=-1

Option c is correct