ShowPer Page
If $f(x)=x^{-100}$ the value of f'(1) is\",100"
NETNUST Entry TestMathematicsNumber System
Find the cofactor of 1 in the matrix $A = \begin{bmatrix}1 & 3 \\2 & 4 \end{bmatrix}$
NETNUST Entry TestMathematicsMatrices and Determinants
Orders of some matrices are given below. Which one of them cannot be multiplied?
NETNUST Entry TestMathematicsMatrices and Determinants
Null matrix of order $1\times2$ is
NETNUST Entry TestMathematicsMatrices and Determinants
Inverse of $A=\begin{bmatrix}1 & 2 \\3 & 4 \end{bmatrix}$ is:
NETNUST Entry TestMathematicsMatrices and Determinants
Inverse of $A=\begin{bmatrix}a & b \\c & d \end{bmatrix}$ is:
NETNUST Entry TestMathematicsMatrices and Determinants
Determinant of $\begin{bmatrix}4 & 5 & 4 \\2 & 1 & 2 \\ 3 & 7 & 3 \end{bmatrix}$ is:
NETNUST Entry TestMathematicsMatrices and Determinants
Find the values of $x$ if $\begin{vmatrix}3 & 1 & x \\-1 & 3 & 4 \\ x & 1 & 0 \end{vmatrix}=-30$
NETNUST Entry TestMathematicsMatrices and Determinants
If determinant of $A=\begin{bmatrix}4& 0 &0 \\0&-2& 0 \\0&0&3 \end{bmatrix}$ then $A_{11}$=
NETNUST Entry TestMathematicsMatrices and Determinants
The value of determinant of $\begin{bmatrix}1& a &b+c \\1&b& c+a \\1&c&a+b \end{bmatrix}$ is
NETNUST Entry TestMathematicsMatrices and Determinants
Determinant of $\begin{bmatrix}x& 1& 1 &1 \\1&x & 1 & 1\\1&1&x & 1\\1&1&1&x \end{bmatrix}$=
NETNUST Entry TestMathematicsMatrices and Determinants
Determinant of $\begin{bmatrix}rcos\theta& 1&-sin\theta\\0&1 & 0\\rsin\theta&0&cos\theta \end{bmatrix}$=
NETNUST Entry TestMathematicsMatrices and Determinants
Determinant of $\begin{bmatrix}1& 1&1\\1&1+x & 1\\1&1&1+y\end{bmatrix}$=
NETNUST Entry TestMathematicsMatrices and Determinants
Determinant of $\begin{bmatrix}b+c& a&a\\b&c+a & b\\c&c&a+b\end{bmatrix}$=
NETNUST Entry TestMathematicsMatrices and Determinants
Determinant of $\begin{bmatrix}1^{2}& 2^{2}&3^{2}\\2^{2}&3^{2} & 4^{2}\\3^{2}&4^{2}&5^{2}\end{bmatrix}$=
NETNUST Entry TestMathematicsMatrices and Determinants
Determinant of $\begin{bmatrix}2a& 2b&2c\\a+b & 2b & b+c\\a+c&b+c&2c \end{bmatrix}$=
NETNUST Entry TestMathematicsMatrices and Determinants
Determinant of $\begin{bmatrix}\alpha& \beta+\gamma& 1 \\\beta & \gamma+\alpha & 1\\\gamma&\alpha+\beta&1 \end{bmatrix}$
NETNUST Entry TestMathematicsMatrices and Determinants
Multiple-choice question
NETNUST Entry TestMathematicsMatrices and Determinants
Multiple-choice question
NETNUST Entry TestMathematicsMatrices and Determinants
If a square matrix has two identical rows or two identical columns, then |A|=
NETNUST Entry TestMathematicsMatrices and Determinants
If in a square matrix A, two rows or two columns are interchanged the determinant of resulting matrix is
NETNUST Entry TestMathematicsMatrices and Determinants
If $A=\begin{bmatrix}1 & -2 & 3 \\-2 & 3 & 1 \\4 & -3& 2\end{bmatrix}$ then co factor $A_{32}$=
NETNUST Entry TestMathematicsMatrices and Determinants
The determinant of a $1\times 1$ matrix $\begin{bmatrix}a_{11} \end{bmatrix}$ is
NETNUST Entry TestMathematicsMatrices and Determinants
If $A=\begin{bmatrix}1 &0 \\0& 1 \end{bmatrix}$ then $A^{-1}$ is
NETNUST Entry TestMathematicsMatrices and Determinants
If A, B and C are three matrices, and A is non-singular then AB=AC if B=
NETNUST Entry TestMathematicsMatrices and Determinants