MCQ
If $A$ is square matrix such that $A^2=A$, then $(I+A)^3-7 A$ $=$ _________ .
  • A
    A
  • B
    I
  • C
    $I - A$
  • D
    3A

Answer

SELF

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

Let $f(x)$ and $g(x)$ be differentiable functions on $R$ . If $h(x) = f(g(f(x)))$ , where $f(2) = 1$ , $g(1) = 2$ and $f'(2) = g'(1) = 4$ , then $h'(2)$ is equal to 
Degree and order of the differential equation $\frac{\text{d}^2\text{y}}{\text{dx}^2}=\Big(\frac{\text{dy}}{\text{dx}}\Big)^2$  are respectively:
  1. 1, 2
  2. 2, 1
  3. 2, 2
  4. 1, 1
If $A = \left[ {\begin{array}{*{20}{c}}1&2&3\\5&0&7\\6&2&5\end{array}} \right]$and $B = \left[ {\begin{array}{*{20}{c}}1&3&5\\0&0&2\end{array}} \right]$, then which of the following is defined
The value of the integral $\int_{0}^{\frac{\pi}{2}} 60 \frac{\sin (6 x)}{\sin x} d x$ is equal to.
A minimum value of $\int_0^x {t{e^{ - {t^2}}}}  dt $ is
Let $f(x) = \left\{ {\begin{array}{*{20}{c}}
  {{x^2}\ln x,\,x > 0} \\ 
  {0,\,\,\,\,\,\,\,\,\,\,\,\,\,x = 0} 
\end{array}} \right\}$, Rolle’s theorem is applicable to $ f $ for $x \in [0,1]$, if $\alpha = $
If A and B are two events such that $\text{P}(\text{A}|\text{B})=\text{p},\text{P(A)}=\text{p},\text{P(B)}=\frac{1}{3}$ and $\text{P}(\text{A}\cup\text{B})=\frac{5}{9},$ then p =
  1. $\frac{2}{3}$
  2. $\frac{3}{5}$
  3. $\frac{1}{3}$
  4. $\frac{3}{4}$
The sum of the squares of sine of the angles made by the line AB with OX, OY, OZ where O is the origin is:
If $f(x)=\left\{\begin{array}{l}\frac{k x}{|x|} \text {, if } x<0 \\ 3, \text { if } x \geq 0\end{array}\right.$ is continuous at $x=0$, then the value of $k$ is
The length of the perpendicular from the point $(1,-2,5)$ on the line passing through $(1,2,4)$ and parallel to the line $x + y - z =0= x -2 y +3 z -5$ is.