1.

If ax^2+bx+cthen 1/alpha+1/Beta=?​

Answer»

ANSWER:

\large{ \bold{ -  \frac{b}{c} }}

Step-by-step EXPLANATION:

a {x}^{2}  + bx + c = 0 \\  \\  \:  \alpha  +  \beta  =  -  \frac{b}{a}  \\  \\  \alpha  \beta  =  \frac{c}{a}  \\  \\ now \\  \\   \frac{1}{ \alpha }  +  \frac{1}{ \beta }  \\  \\  =  \frac{ \alpha  +  \beta }{ \alpha  \beta }  \\  \\  =  \frac{ -  \frac{b}{a} }{ \frac{c}{a} }  \\  \\  =  -  \frac{b}{c}

HOPE IT HELPS



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