Question

I use wolframalpha to check my solution, however, I cannot open step by step solution. Anyone guide me, please

Answer 1

~Do you have a account on wolframlpha?~

Answer 2

sure.

Answer 3

Have you used up your 3 for the day?

Answer 4

what do you mean? I paid monthly

Answer 5

Hmm, nevermind. Well, maybe you should restart your computer and see if it works? Maybe your computer Is being a little laggy and not opening it up.

Answer 6

ok, thanks.

Answer 7

Welcome.

Answer 8

step by step for what?

Answer 9

I typed my problem on the question bar, and it just gives me the final answer. I click "step by step solution" it dropped out the form but nothing there

Answer 10

@amistre64 https://www.wolframalpha.com/input/?i=y%27%27%27-y%3Dsinht%2C+y%280%29%3Dy%27%280%29%3Dy%27%27%280%29%3D0

Answer 11

@Loser66, have you learned about the Laplace transform?

Answer 12

yes, I was taught this morning

Answer 13

but for this problem, I was asked to solve by U.C and variation parameter, both ways are not hard but take time. I want to check my answer

Answer 14

Both methods, or just one of them? U.C. is simpler, I think.

Answer 15

Both

Answer 16

Ha, variation parameter is nightmare, hehehe. but still has an outlet.

Answer 17

I send message to wolframalpha to get help from the site. do you know how to fix my problem from the site.?

Answer 18

I've opened the link, but I don't get a solution nor do I have the option to see the step-by-step solution.

I could help you check your answer if you'd like.

Answer 19

let me scan my solution , it is more than 2 pages, hehe

Answer 20

nope, characteristic is r^3 -1=0

Answer 21

Ah, right. Disregard that comment.

Answer 22

In the first scan, when you substituted \(y_{p_1}\) and \(y'''_{p_1}\), you should have
\[3Ae^{t}+Ate^t-Ate^t=\frac{1}{2}e^t\\
3A=\frac{1}{2}\\
A=\frac{1}{6}\]
(it looks like you had it right at one time)

Answer 23

yes, thanks a lot. you are right

Answer 24

yes, I think you pointed out my only one mistake which leads to wrong answer compare to wolfram.

Answer 25

I have many problems else. when I finish, I will post here. If you have time, please stop by and check it. It's not urgent. Whenever you have time, check one by one, please. I need it.

Answer 26

Sure thing

Answer 27

Thanks a looooot.

Answer 28

You're welcome!