Question

13. If a and B are the zeros of the polynomial y2 + y - 1, then
find
+
a B

Answer 1

y²+y-1

y²-1y-1y-1

y(y-1)-1(y-1)

(y-1)(y-1)=0

y=1,1

● a=1,b=1,c=1

product of zeros=ab

=c/a

=1/1

ab=1