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#2 Quyiz 9wks

Authored by MRG HEALY

Mathematics

10th Grade - University

Used 1+ times

#2 Quyiz  9wks
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9 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 12 x4x2dx=\int_1^2\ \frac{x-4}{x^2}dx=  

 12\frac{-1}{2}  

 ln22\ln2-2  

 ln2\ln2  

2

 ln2+2\ln2+2  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If  y=enxy=e^{nx} ,  then   d ndxn(y)  =\frac{d^{\ n}}{dx^n}\left(y\right)\ \ =   ?  [ or  what is   y(n)  y^{\left(n\right)\ \ }  nth derivative of y ?  ]

 nnenxn^n\cdot e^{nx}  

 n!enxn!\cdot e^{nx}  

 nenxn^{ }\cdot e^{nx}  

 nnexn^n\cdot e^x  

 n!exn!\cdot e^x  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If   f(x)=e1xf\left(x\right)=e^{\frac{1}{x}}   then   f(x)=f'\left(x\right)=  

 e1xx2\frac{-e^{\frac{1}{x}}}{x^2}  

 e1x-e^{\frac{1}{x}}  

 e1xx\frac{e^{\frac{1}{x}}}{x}  

 e1xx2\frac{e^{\frac{1}{x}}}{x^2}  

 1xe(1x1)\frac{1}{x}\cdot e^{\left(\frac{1}{x}-1\right)}  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 03(x+1)12dx=\int_0^3\left(x+1\right)^{\frac{1}{2}}dx=  

 212\frac{21}{2}  

7

 163\frac{16}{3}  

 143\frac{14}{3}  

 14\frac{-1}{4}  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 x4x2dx=\int x\cdot\sqrt{4-x^2}dx=  

 (4x2)323+C\frac{\left(4-x^2\right)^{\frac{3}{2}}}{3}+C  

 (4x2)32+C-\left(4-x^2\right)^{\frac{3}{2}}+C  

 x2(4x2)323+C\frac{x^2\left(4-x^2\right)^{\frac{3}{2}}}{3}+C  

 x2(4x2)323+C\frac{-x^2\left(4-x^2\right)^{\frac{3}{2}}}{3}+C  

 (4x2)323+C\frac{-\left(4-x^2\right)^{\frac{3}{2}}}{3}+C  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If   f(x)=ln(lnx)f\left(x\right)=\ln\left(\ln x\right)  ,  then   f(x)=f'\left(x\right)=  

 1x\frac{1}{x}  

 1lnx\frac{1}{\ln x}  

 lnxx\frac{\ln x}{x}  

 xx  

 1xlnx\frac{1}{x\ln x}  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If   f(x)=(2x+1)4f\left(x\right)=\left(2x+1\right)^4  ,  then   d(4)dx4(f(x)) \frac{d^{\left(4\right)}}{dx^4}\left(f\left(x\right)\right)\   ( fourth derivative of  f(x)f\left(x\right)  )  at   x=0x=0  [ or f(4)(0) f^{\left(4\right)}\left(0\right)\  ]  =

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