Question

If A ,B are the zeroes of x^2+7x+10 then find the value of 1/a + 1/B

Answer 1

Given :-

p (x) = x^2+7x+10

Zeroes = A & B

To Find :-

1/A+1/B

Solution :-

p (x) = x^2+7x+10

a = 1 , b = 7 , c = 10

Sum Of Zeroes(A+B) = -b/a

= -7/1 = > -7

Product Of Zeroes (AB) = c/a

= 10/1 => 10

1/A+1/B = A+B/AB

= -7/10