Question

can you please answer this question​

Answer 1

Step-by-step explanation:

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Answer 2

We know,

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

A.T.Q., we need to find

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

Putting in the values of b and c, we get

$= \frac{ - ( -7)}{5} \\ = \frac{7}{5}$

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