The area (in sq.units) of the region enclosed by the curve \(y=\cos x,\ \frac{-\pi}{2}\le x\le\frac{\pi}{2}\) and the \(x\)-axis is:

If \(P(A)=\frac{3}{5}\), \(P(B)=\frac{1}{2}\) and \(P(A\cap B)=\frac{1}{4}\), then \(P(\overline{A}\,|\,\overline{B})\) is

Match List-I with List-II List-I | List-II (A) If vector \(\vec a\) and \(\vec b\) are such that \(\vec a=\lambda\vec b\) and \(|\vec a|=|\vec b|\), then | (I) \(\vec a\) and \(\vec b\) are orthogonal (B) Projection vector of \(\vec a\) on \(\vec b\) | (II) [0,12] (C) \(\vec a\)…

\(\int \frac{dx}{e^x+e^{-x}}\) is equal to

Match List-I with List-II List-I | List-II (A) The degree of the differential equation \(\left(\frac{d^2y}{dx^2}\right)^2+\left(\frac{dy}{dx}\right)^2=x\sin\left(\frac{dy}{dx}\right)\) | (I) 4 (B) The degree of the differential equation…

If…

If \(\vec a\) is a unit vector and \((\vec x-\vec a)\cdot(\vec x+\vec a)=15\), then the value of \(|\vec x|\) is:

Cosine of the acute angle between the lines \(\frac{x-3}{2}=\frac{y-2}{1}=\frac{z-5}{2}\) and \(\frac{x-1}{6}=\frac{y-3}{-3}=\frac{z+6}{2}\) is

The function \(f:\mathbb{R}\to[-1,1]\) defined by \(f(x)=\cos x\) is: