Question

if alpha and beta are the roots of quadratic equation 3x^2 -5x+4 = 0 find the value of 1/a +1/b - 2ab​

Answer 1

Answer:

-17/12

Step-by-step explanation:

3x²-5x+4=0

a and b are the roots

a+b=5/3. and ab=4/3

1/a+1/b=a+b=5/3=5/4

ab. 4/3

1/a+1/b-2ab

5/4-2(4/3)

5/4-8/3

-17/12