1
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$f(x)=\left\{\begin{array}{cl}\frac{\left(2 x^2-a x+1\right)-\left(a x^2+3 b x+2\right)}{x+1}, & \text { if } x \neq-1 \\ k_k, & \text { if } x=-1\end{array}\right.$

is a real valued function. If $a, b, k \in R$ and $f$ is continuous on $R$, then $k=$

A
$-\frac{1}{3}$
B
6
C
$a-2$
D
$a=3$
2
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $f(x)=\left\{\begin{array}{cl}\frac{2 x e^{1 / 2 x}-3 x e^{-1 / 2 x}}{e^{1 / 2 x}+4 e^{-1 / 2 x}} & \text { if } x \neq 0 \\ 0 & \text { if } x=0\end{array}\right.$ is a real valued function, then
A
$f^{\prime}\left(0^{\prime}\right)=\frac{-3}{4}$
B
$f^{\prime}\left(0^{-}\right)=2$
C
$f$ is not differentiable at $x=0$
D
$f$ is differentiable at $x=0$
3
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $y=\tan ^{-1}\left(\frac{2-3 \sin x}{3-2 \sin x}\right)$, then $\frac{d y}{d x}=$
A
$\frac{(3-2 \sin x)^2}{13 \sin ^2 x-24 \sin x+13}$
B
$\frac{-5 \cos x}{13 \sin ^2 x-24 \sin x+19}$
C
$\frac{5 \sin x}{13 \sin ^2 x-24 \sin x+13}$
D
$\frac{-5 \sin x}{13 \sin ^2 x-24 \sin x+13}$
4
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $x=3\left[\sin t-\log \left(\cot \frac{t}{2}\right)\right]$ and $y=6\left[\cos t+\log \left(\operatorname{tin} \frac{t}{2}\right)\right]$ then $\frac{d y}{d x}=$
A
$\frac{2 \sin ^2 t}{1+\sin t \cos t}$
B
$\frac{2 \cos ^2 t}{1+\sin 2 t}$
C
$\frac{2 \cos ^2 t}{1+\sin t \cos t}$
D
$\frac{1+\cos g}{1+\sin a}$
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