Which of the following substances combines with hemoglobin in the blood to form carboxyhemoglobin?

$\left\{x \in R: \frac{2x-1}{x^3+4x^2+3x} \in R\right\}$ equals

The eccentricity of the ellipse $x^2+4y^2+2x+16y+13=0$ is

The coefficient of apparent expansion of a liquid when determined using two different vessels $A$ and $B$ are $\gamma_1$ and $\gamma_2$ respectively. If the coefficient of linear expansion of vessel $A$ is $\alpha$,the coefficient of linear expansion of vessel $B$ is

Product $(A)$ is

If $f(x) = x^3 - 10x^2 + 200x - 10$,then