Question

solve this mate question​

Answer 1

Answer:

7

Step-by-step explanation:

$f(x) = 5x² - 7x + 1 \\ \ \alpha + \beta = \frac{ 7}{5} \\ \alpha \times \beta = \frac{1}{5} \\ \frac{ 1 }{ \alpha } + \frac{1 }{ \beta} = \frac{ \alpha + \beta }{ \alpha \times \beta } \\ = \frac{7}{5} \div \frac{1}{5} \\ = \frac{7}{5} \times \frac{5}{1} \\ \\ = 7$

HOPE YOU UNDERSTOOD THE SOLUTION

Answer 2

Answer:

5x^2 - 7x + 1 an equation whose zeroes are

$\alpha \: and \: \ \beta$

thus.

$\alpha \: + \: \beta =$

-b/a = 7/5

$\alpha \beta \: =$

c/a= 1/5

thus.

$1 \div \alpha \: + \: 1 \div \beta \: = \: \alpha \: + \: \beta \: \div \: \alpha \beta$

= 7/5/1/5 = 7 this would be your answer.

I hope it is helpful to you.

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