Which combination of tissues acts together to provide support to the hypocotyl of a seedling?

The solution of $(1+x^2) \frac{dy}{dx} + 2xy - 4x^2 = 0$ is:

Which one is an incorrect statement?

The line passing through $\left(-1, \frac{\pi}{2}\right)$ and perpendicular to $\sqrt{3} \sin \theta + 2 \cos \theta = \frac{4}{r}$ is :

$A$ bar magnet of length $3 \, cm$ has points $A$ and $B$ along its axis at distances of $24 \, cm$ and $48 \, cm$ from the center on opposite sides. The ratio of the magnetic fields at these points is:

If the transverse and conjugate axes of a hyperbola are equal,then its eccentricity is