Question

If a and b are the roots of x2-px-q=0 find 1/b-1/a

Answer 1

Answer:1/b -1/a == a-b /ab == -p/q

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:a+b=p,ab=-q,a-b=under root of p2+4q

1/b-1/a=a-b/ab=under root of p2 +4q/-q