Question

If $a^2-3a+1=0$; find $a+\frac{1}{a}$

• A. $19$
• B. $12$
• C. $10$
• D. $3$

Answer 1

The correct option is D $3$

$a^2-3a+1=0$
$=>a^2+1=3a$
Dividing the whole equation by $a$
$=>a+\frac{1}{a}=3$