Electronics and Communication Engineering - Exam Questions Papers - Discussion

13. 

The inverse of given Laplace transform is

[A]. sin t
[B]. cos t
[C]. et
[D]. e2t

Answer: Option B

Explanation:

s = x2 - ex

x(t) = cos t.


Ramesh said: (Oct 6, 2015)  
Sir, please give me clarity about the problem.

Gopal said: (Sep 19, 2016)  
Please provide the detailed solution.

How you eliminated 2nd order term?

Manish said: (Mar 27, 2018)  
It is given e^x in numerator and e^(1/x) in the denominator. Then how substitution made possible?

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