Question

If alpha and Bita are the root for the equation 5x2 - 7x + 1 = 0, then the value of 1/alpha+1/bita​

Answer 1

Answer:

7

Step-by-step explanation:

p(x)=5x^2-7x+1=0

$\alpha + \beta = - b \div a = 7 \div 5 \\ \alpha \beta = c \div a = 1 \div 5 \\ 1 \div \alpha + 1 \div \beta = \alpha + \beta \div \alpha \beta \\ = \frac{7}{5} \div \frac{1}{5} \\ = 7$