Question
The value of (adj A) is equal to
  1. 2A
  2. 4A
  3. 8A
  4. 16A

Answer

  1. 2A
Solution:
 
The value of (adj  A) is equal to 2A.
Option A is correct answer.

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

Similar questions

Which of the following is the principal value branch of $\operatorname{cosec}^{-1} x$ ?
The general solution of the dofferential equation $\frac{\text{dy}}{\text{dx}}=\text{e}^{\text{x}+\text{y}}$ is:
  1. $\text{e}^{\text{x}}+\text{e}^{-\text{y}}=\text{C}$
  2. $\text{e}^{\text{x}}+\text{e}^{\text{y}}=\text{C}$
  3. $\text{e}^{-\text{x}}+\text{e}^{\text{y}}=\text{C}$
  4. $\text{e}^{-\text{x}}+\text{e}^{-\text{y}}=\text{C}$
Evaluate: $\int \sec ^2(7-4 x) d x$
lf a line makes angles $\frac{\pi}{12},\frac{5\pi}{12}$ with oy, oz respectively where 0 = (0, 0, 0), then the angle made by that line with ox is:
  1. 45°
  2. 90°
  3. 60°
  4. 30°
The Polygon Law of Vector Addition is simply an extension of:
  1. Parallelogram Law of Vector Addition
  2. Triangular Law of Vector Addition
  3. Both A and B
  4. None of the above
Which of the following functions is discontinuous function?
Corner points of the feasible region determined by the system of linear constraints are $(0,3),(1,1)$ and $(3,0)$. Let $Z=p x+q y$, where $p, q>0$. Condition on $p$ and $q$ so that the minimum of $Z$ occurs at $(3,0)$ and $(1,1)$ is
If $x^y = e^{x-y} $ then $\frac{\text{dy}}{\text{dx}}$ is:
Choose the correct answers from the given four options:
If $\text{f(x)}=\text{x}^2\sin\frac{1}{\text{x}},$ where $\text{x}\neq0,$ then the value of the function f at x = 0, so that the function is continuous at x = 0, is:
  1. 0
  2. -1
  3. 1
  4. None of these
Find the area enclosed by the parabola $y^2 = x$ and the line $y + x = 2$ and the $x-$axis$:$