Question

if alpha+beta are the roots of 9x2-10x+11=0 then​

Answer 1

alpha + beta = -b/a

i.e,-b/a = -(-10)/9

= 10/9

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Answer 2

$\alpha + \beta = \frac{ - b}{a }$

$\alpha + \beta = + \frac{10}{9}$

$\alpha \beta = \frac{c}{a}$

$\alpha \beta = + \frac{11}{9}$

Hope It Help!!!!!!!!!!!!