Question

(20:} If a and b are the zeroes of the quadratic polynomial ax+bx+c find the
value 1/a+1/b​

Answer 1

Answer:

$\alpha + \beta = \frac{ - b}{a} \\ \alpha \beta = \frac{c}{a} \\ \frac{1}{ \alpha } + \frac{1}{ \beta } = \frac{ \alpha + \beta }{ \alpha \beta } \\ \frac{ \frac{ - b}{a} }{ \frac{c}{a} } = \frac{ - b}{a} ans.$