Let $\alpha , \beta$ be the roots of $x^2+3x+5=0$$,$ then the equation whose roots are $-\frac{1}{\alpha }$ and $-\frac{1}{\beta }$ is

Form the quadratic equation from the roots $3 \mathrm{and} -10$.

Two roots of quadratic equation are given; frame the equation.

$1-3\sqrt{5}$ and $1+3\sqrt{5}$

Form the quadratic equation from the roots $\frac{1}{2} \mathrm{and} -\frac{1}{2}$.

If $\alpha , \beta$ are the zeroes of a polynomial $x^2-ax+b$ , such that $\alpha +\beta =6$ and $\alpha \beta =4$, then find the value of $\left(a+b\right)$.

Two roots of quadratic equation are given; frame the equation.

$10$ and $-10$

Form the quadratic equation from the roots $0 \mathrm{and} 4$.

Form the quadratic equation from the roots $2-\sqrt{5} \mathrm{and} 2+\sqrt{5}$.

Two roots of quadratic equation are given; frame the equation.

$0$ and $7$