1
KCET 2024
MCQ (Single Correct Answer)
+1
-0

If $y=2 x^{3 x}$, then $d y / d x$ at $x=1$ is

A
2
B
6
C
3
D
1
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

$\frac{d}{d x}\left[\cos ^2\left(\cot ^{-1} \sqrt{\frac{2+x}{2-x}}\right)\right]$ is

A
$-\frac{3}{4}$
B
$-\frac{1}{2}$
C
$\frac{1}{2}$
D
$\frac{1}{4}$
3
KCET 2023
MCQ (Single Correct Answer)
+1
-0

If $$y=a \sin x+b \cos x$$, then $$y^2+\left(\frac{d y}{d x}\right)^2$$ is a

A
function of $$y$$
B
function of $$x$$ and $$y$$
C
constant
D
function of $$x$$
4
KCET 2023
MCQ (Single Correct Answer)
+1
-0

If $$f(x)=1+n x+\frac{n(n-1)}{2} x^2+\frac{n(n-1)(n-2)}{6} x^3+\ldots+x^n$$, then $$f^n(1)$$ is equal to :

A
$$n(n-1) 2^{n-2}$$
B
$$n(n-1) 2^n$$
C
$$2^{n-1}$$
D
$$(n-1) 2^{n-1}$$
KCET Subjects
EXAM MAP