Question

If alpha and beta are the zeros of the polynomial x square minus PX + Q find one upon alpha plus one upon beta

Answer 1

Alpha + beta = - b/a

= alpha + beta = - p/0 ( a is not in equation)
= 0

&,
Alpha×beta= c/a
0

Now,

1/alpha + 1/beta
= beta + alpha/alpha ×beta
=0/0
=0