Bihar Board 12th Mathematics - 121-327 - Set-A Question Paper with Solutions PDF Download

If $f: \mathbb{R} \to \mathbb{R}$ is defined by $f(x) = 3x + 2$, then $f(f(x))$ equals:

A relation $R$ on set $A = \{1, 2, 3\}$ is defined as $R = \{(1,1),(2,2),(3,3),(1,2),(2,1)\}$. Then $R$ is:

If $A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}$, then $A + A^T$ equals:

The order of matrix $A$ is $3 \times 4$ and $B$ is $4 \times 3$. What is the order of $AB$?

If $y = \sin^{-1}(x)$, then $\dfrac{dy}{dx}$ equals:

The value of $\displaystyle\int_0^{\pi/2} \sin x \, dx$ is:

If $P(A) = \dfrac{1}{2}$, $P(B) = \dfrac{1}{3}$ and $A$ and $B$ are independent events, then $P(A \cap B)$ is: