1
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+2
-0

If $A$ is non-singular matrix and $(A+I)(A-I)=0$ then $A+A^{-1}=$ .............

A
2A
B
0
C
I
D
3I
2
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+2
-0

Equations of planes parallel to the plane $x-2 y+2 z+4=0$ which are at a distance of one unit from the point $(1,2,3)$ are ............

A
$x+2 y+2 z=-6, x+2 y+2 z=5$
B
$x-2 y-6=0, x-2 y+z=6$
C
$x+2 y+2 z=6, x+2 y+2 z=0$
D
$x-2 y+2 z=0, x-2 y+2 z-6=0$
3
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+2
-0

The $y$-intercept of the line passing through $A(6,1)$ and perpendicular to the line $x-2 y=4$ is ...........

A
5
B
13
C
$-$2
D
26
4
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+2
-0

If function

$$\begin{aligned} f(x) & =x-\frac{|x|}{x}, x<0 \\ & =x+\frac{|x|}{x}, x>0 \\ & =1, \quad x=0, \text { then } \end{aligned}$$

A
$\lim _\limits{x \rightarrow 0^{-}} f(x)$ does not exist
B
$\lim _\limits{x \rightarrow 0^{+}} f(x)$ does not exist
C
$f(x)$ is continuous at $x=0$
D
$\lim _\limits{x \rightarrow 0^{-}} f(x) \neq \lim _\limits{x \rightarrow 0^{+}} f(x)$
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