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Inverse Laplace transforms

Authored by hema latha

Mathematics

University

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Inverse Laplace transforms
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Inverse Laplace transform, transform

f(t) to F(s)f\left(t\right)\ to\ F\left(s\right)

F(s) to f(t)F\left(s\right)\ to\ f\left(t\right)

f(t ) to f(t)f'\left(t\ \right)\ to\ f\left(t\right)

f(t) to f(t)f\left(t\right)\ to\ f'\left(t\right)

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find  L1(ss2+25)L^{-1}\left(\frac{s}{s^2+25}\right)  

cos 25t

sin 5t

cos 5t

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find  L1(1s2+1)L^{-1}\left(\frac{1}{s^2+1}\right)  

sin t

sin 5t

cos t

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 L1(6(s)4ss2+25)L^{-1}\left(\frac{6}{\left(s\right)}-\frac{4s}{s^2+25}\right)  What is the property use to find the Inverse Laplace Transform of this equation?

Second Shifting Property

First Shifting Property

Linearity Property

Convolution theorem

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 L1(6(s)4ss2+25)L^{-1}\left(\frac{6}{\left(s\right)}-\frac{4s}{s^2+25}\right)  

 14cos5t1-4\cos5t  

 64cos5t6-4\cos5t  

 6cos5t6-\cos5t  

 6t4cos5t6t-4\cos5t  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 L1 (4ss2+25+23(s2+1))L^{-1\ }\left(\frac{4s}{s^2+25}+\frac{2}{3\left(s^2+1\right)}\right)  

 4 cos 25t+23sin t4\ \cos\ 25t+\frac{2}{3}\sin\ t  

 cos 5t+ 32sin t\cos\ 5t+\ \frac{3}{2}\sin\ t  

 4 cos 5t +23sin t4\ \cos\ 5t\ +\frac{2}{3}\sin\ t  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The  L1(4(s2+9))L^{-1}\left(\frac{4}{\left(s^2+9\right)}\right)  is  a sin 3ta\ \sin\ 3t  . What is a?

 23\frac{2}{3}  

 43\frac{4}{3}  

 33  

 13\frac{1}{3}  

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