1
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A function $y=f(x)$ with $f(-1)=-249$ has no maximum and has only one minimum at $x=5$ with $f(5)=75$. Which one of the following is true?

A

At some point in $(-1,5), f(x)$ is discontinuous

B

The minimum value cannot be 75 since $f(-1)

C

$f(x)$ is discontinuous at every point of $\mathbf{R}$

D

$f(x)$ is continuous on $\mathbf{R}$

2
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $\int e^{\sin ^2 x}\left(\sin x \cos x+\cos ^3 x \sin x\right) d x=e^{\sin ^2 x}(1+f(x))+c$, then $f^{\prime}(x)=$

A

$\frac{1}{2} \sin ^2 x$

B

$\frac{1}{2} \cos ^2 x$

C

$-\frac{1}{2} \cos 2 x$

D

$-\frac{1}{2} \sin 2 x$

3
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ \int \frac{25 x^2+8}{\sqrt{25 x^2+9}} d x= $$

A

$\frac{x}{2} \sqrt{25 x^2+9}+\frac{11}{10} \sinh ^{-1}\left(\frac{5 x}{3}\right)+C$

B

$\frac{x}{2} \sqrt{25 x^2+9}-\frac{7}{10} \log \left(\frac{5 x+\sqrt{25 x^2+9}}{3}\right)+C$

C

$\frac{x}{2} \sqrt{25 x^2+9}+\frac{7}{10} \sinh ^{-1}\left(\frac{5 x}{3}\right)+C$

D

$\frac{x}{2} \sqrt{25 x^2+9}+\frac{11}{10} \log \left(\frac{5 x-\sqrt{25 x^2+9}}{3}\right)+C$

4
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$ I_{m, n}=\int x^m(\log x)^n d x= $$

A

$\frac{x^{m+1}}{m+1}(\log x)^n-\frac{n}{m+1} I_{m, n-1}$

B

$\frac{x^m}{m}(\log x)^n-\frac{n-1}{m+1} I_{m+1, n-1}$

C

$\frac{x^{m+1}}{m} \frac{(\log x)^{n+1}}{n+1}-\frac{n}{m+1} I_{m, n-1}$

D

$x^m \frac{(\log x)^{n+1}}{n+1}-\frac{n}{m+1} I_{m, n-1}$

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