Question

Q20: If a and ß are the zeroes of the quadratic polynomial ax2+ bx+c find the
value of 1/alpha+1/beta​

Answer 1

sum of roots, alpha+beta= -b/a------1

product of roots, alpha*beta= c/a----2

dividing 1 by 2 :-

1/beta + 1/alpha = - b/c