Evaluate i&-1 -1&i - Vidyadip

MCQ

Evaluate $\begin{bmatrix}\text{i}&-1\\-1&\text{i}\end{bmatrix}$

✓
$4$
B
$3$
C
$2$
D
$0$

✓

Answer

Correct option: A.

$4$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Determinants→Determinants — all question types→Maths STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

$\int_{}^{} {\sin (\log x)dx = } $

The shortest distance between the lines $\frac{x-5}{1}=\frac{y-2}{2}=\frac{z-4}{-3}$ and $\frac{x+3}{1}=\frac{y+5}{4}=\frac{z-1}{-5}$ is

Let $f(x) = \left\{ \begin{array}{l}\frac{{x - 4}}{{|x - 4|}} + a,\;x < 4\\\,\,\,\,\,\,\,\,\,\,\,\,a + b,\,x = 4\\\frac{{x - 4}}{{|x - 4|}} + b,\,x > 4\end{array} \right.$. Then $f(x)$ is continuous at $x = 4$ when

If $\displaystyle \begin{vmatrix}\text{x} &\text{amp; } 1 \\ \text{y} &\text{amp; } 2 \end{vmatrix}-\displaystyle \begin{vmatrix}\text{y} &\text{amp; } 1 \\ 8&\text{amp; } 0\end{vmatrix}=\displaystyle \begin{vmatrix}2 &\text{amp; } 0 \\ \text{-x}&\text{amp; } 2\end{vmatrix}$ then the values of x and y respectively are:

$\text{ABCD}$ is a parallelogram with $AC$ and $BD$ as diagonals. Then, $\overrightarrow{\text{AC}}-\overrightarrow{\text{BD}}=$

What is $ \tan ^{ -1 }{ \left( \frac { 1 }{ 2 } \right) } +\tan ^{ -1 }{ \left( \frac { 1 }{ 3 } \right) }$equal to?

Ramkali is trying to find the solution of the following definite integrals :
(i) $\int_0^{2 \pi} \frac{d x}{e^{\sin x}+1}$
(ii) $\int_0^1 x^2 d x$
(iii) $\int_0^1 e^x d x$
Which of the above integrals solved by using of definite integral properties?

Directions : In the following questions, the Assertions $(A)$ and Reason $(s)\ (R)$ have been put forward. Read both the statements carefully and choose the correct alternative from the following:
Assertion $(A) : $ if $\text{y}=\tan5\text{x}^\circ,\text{then}\frac{\text{dy}}{\text{dx}}=\frac{5\pi}{180}\sec^2(5\text{x}^\circ)$
Reason $(R) : \pi^\text{c}=90^\circ$

Let A = {1, 2, 3} and B = {(1, 2), (2, 3), (1, 3)} be a relation on A. Then, R is:

If $A$ and $B$ are matrices of the same order, then $AB^T - BA^T$ is a: