What is the product obtained in the following reaction?

$A$ pair of insectivorous plants is

If the difference between the roots of the equations $x^2 + ax + b = 0$ and $x^2 + bx + a = 0$ is the same and $a \neq b$,then:

The function $f: R \rightarrow R$ defined by $f(x)=\frac{x}{\sqrt{1+x^2}}$ is ........

The de Broglie wavelength of a proton is twice the de Broglie wavelength of an alpha particle. The ratio of the kinetic energies of the proton and the alpha particle is

If $u+iv = \frac{3i}{x+iy+2}$,then $y=$