Choose the most appropriate options. The degree of the differential equation \[ x = 1 + \frac{dy}{dx} + \frac{1}{2!} \left( \frac{d^2y}{dx^2} \right) + \frac{1}{3!} \left( \frac{d^3y}{dx^3} \right) + ... \]
Calculate
\[ \begin{vmatrix} x & y & x + y \\ y & x + y & x \\ x + y & x & y \end{vmatrix} \]
Choose the most appropriate option. Find the distance from the point A (2, 3, -1) to the given straight line. \[ x = 3t + 5, \quad y = 2t, \quad z = -2t - 25 \]
Choose the most appropriate options. The limit \[ \lim_{x \to 0} \frac{1 - \cos 2x}{x \tan 4x} \]
How many paths are there from the point A to the point B in the figure below, if no point in a path is to be traversed more than once?
Choose the most appropriate options. If \( |z^2 - 1| = |z|^2 + 1 \), then \( z \) lies on a
Choose the most appropriate options. If \( f(x) = [x \sin n\pi x] \), then which of the following is incorrect?
Choose the most appropriate option. If \( A \) is a square matrix such that \( A^2 = A \) and \( B = I \), then \( AB + BA + I - (I - A)^2 \) is equal to:
Choose the most appropriate options. If the SD of a set of observations is 8 and each observation is divided by -2, then the SD of the new set of observation will be: