The probability that task is completed on time by at least one of them is:

From the passage: Mohan wants to donate a rectangular plot of land for a hospital in his...

The equations in terms of \(x\) and \(y\) are:

Three urns contain 6 red, 4 black; 4 red, 6 black and 5 red, 5 black marbles respectively. One of the urns is selected at random and a marble is drawn from it. If the marble drawn is red, then the probability that it is drawn from the first urn is

\(\int x\sqrt{x + 2}\,dx\) is equal to:

The corner points of the feasible region for an L.P.P. are \((0, 10)\), \((5, 5)\), \((15, 15)\) and \((0, 20)\). If the objective function is \(z = px + qy\); \(p, q > 0\), then the condition on \(p\) and \(q\) so that the maximum of \(z\) occurs at \((15, 15)\) and \((0, 20)\)…

If \(A = \begin{bmatrix}2&3\\-3&5\end{bmatrix}\), then which of the following statements are correct? A. \(A\) is a square matrix B. \(A^{-1}\) exists C. \(A\) is a symmetric matrix D. \(|A| = 19\) E. \(A\) is a null matrix Choose the correct answer from the options given below.

If \(\vec{a}, \vec{b}\) and \(\vec{c}\) are three unit vectors such that \(\vec{a} + \vec{b} + \vec{c} = 0\) then the value of \(\vec{a}\cdot\vec{b} + \vec{b}\cdot\vec{c} + \vec{c}\cdot\vec{a}\) is

The number of all possible matrices of order \(2\times2\) with each entry 0 or 1 is

If \(\vec{p} = \hat{i} + \hat{j} - 2\hat{k}\) and \(\vec{q} = 2\hat{i} + \hat{j} - \hat{k}\), then the area of parallelogram having diagonals \((\vec{p} + \vec{q})\) and \((\vec{p} - \vec{q})\) is