Math Is Fun Forum

ninjaman

Member

Registered: 2013-10-15

Posts: 61

laplace problem

my tutor says i got the wrong answer. could someone please help!

not sure here
any help!
thanks
simon

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: laplace problem

Hi;

The last step is correct, did you check your arithmetic before that?

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

ninjaman

Member

Registered: 2013-10-15

Posts: 61

Re: laplace problem

no, my tutor has told me that he thinks it is wrong, though he hasnt checked his answers?

he told me he would check with other students and get back to me. i posted this question on another forum and they told me this is correct. im not sure as i am terrible at this. the question is almost exactly the same as a question posted on the internet.

http://www.intmath.com/laplace-transformation/10-applications.php

this is the web site, its the first question with the answer. the only difference is the capacitor, voltage and resistor values. the whole question is identical. i followed the example changing the values as i went. so i thought that it was accurate. i just wanted to check as i have no way of knowing if this is correct. i have changed the degree that i will be studying at uni because it has less maths. thats a change in career. thats how much i drag at maths.
i just wanted to know if this is correct answer with the correct work.

thanks
simon

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: laplace problem

Hi;

I am sorry that you made a career changing move, a life changing move because you believe you are bad at math. Let me tell you this, If you are clever enough to understand and use the template - example method of solving a problem, then you are better at it than you think.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.