1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+2
-0

Which of the following function has period 2?

A
$\cos \left[\left(\frac{\pi}{3}\right) x\right]$
B
$\cos \left[\left(\frac{\pi}{2}\right) x\right]$
C
$\cos (2 \pi x)$
D
$\cos (\pi x)$
2
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+2
-0

If $f(x)=3 x+6, g(x)=4 x+k$ and $f \circ g(x)=g \circ f(x)$ then $k=$

A
$-9$
B
18
C
$\frac{1}{9}$
D
9
3
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+2
-0

If $f(x)=3 x-2$ and $g(x)=x^2$, then $(f \circ g)(x)=$

A
$3 x^2-2$
B
$3 x^2+2$
C
$3 x-2$
D
$2-3 x^2$
MHT CET Subjects
EXAM MAP