Finding $a$ and $b$ such that $2cos 2pi a t sin 2 pi b t$ is $0$ at even $t$ and $pm 2$ at odd $t$ [on hold]











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Trying to solve this wave function. I appreciate anyone who chooses to help.



The problem I'm trying to solve says:




A wave with function $g(t) = 2cos(2pi a t)sin(2pi b t)$ is graphed
with $a<b$. Find the values of a and b. It may also help to draw the
envelope on the graph. The envelope is the cosine function.



[Sorry for no graph. At every odd number, it's at $0$, and at every even number, it's at the maximum and minimum of $2$ and $-2$.]











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put on hold as unclear what you're asking by Kavi Rama Murthy, Shailesh, 5xum, amWhy, José Carlos Santos 1 hour ago


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.















  • For every a,b you get a g(t) graph. You are missing some data for us. Where is the graph?
    – Moti
    11 hours ago










  • sorry for no graph. At every odd number its at 0 and at every even number its at the maximum and minimum of 2 and -2.
    – Nicholas Hulse
    11 hours ago










  • Did you try to convert the equation into a sum of two sine waves?
    – Moti
    10 hours ago










  • Leaving wave function as a product instead of sum enables evaluation of two roots.
    – Narasimham
    4 hours ago















up vote
-2
down vote

favorite












Trying to solve this wave function. I appreciate anyone who chooses to help.



The problem I'm trying to solve says:




A wave with function $g(t) = 2cos(2pi a t)sin(2pi b t)$ is graphed
with $a<b$. Find the values of a and b. It may also help to draw the
envelope on the graph. The envelope is the cosine function.



[Sorry for no graph. At every odd number, it's at $0$, and at every even number, it's at the maximum and minimum of $2$ and $-2$.]











share|cite|improve this question









New contributor




Nicholas Hulse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











put on hold as unclear what you're asking by Kavi Rama Murthy, Shailesh, 5xum, amWhy, José Carlos Santos 1 hour ago


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.















  • For every a,b you get a g(t) graph. You are missing some data for us. Where is the graph?
    – Moti
    11 hours ago










  • sorry for no graph. At every odd number its at 0 and at every even number its at the maximum and minimum of 2 and -2.
    – Nicholas Hulse
    11 hours ago










  • Did you try to convert the equation into a sum of two sine waves?
    – Moti
    10 hours ago










  • Leaving wave function as a product instead of sum enables evaluation of two roots.
    – Narasimham
    4 hours ago













up vote
-2
down vote

favorite









up vote
-2
down vote

favorite











Trying to solve this wave function. I appreciate anyone who chooses to help.



The problem I'm trying to solve says:




A wave with function $g(t) = 2cos(2pi a t)sin(2pi b t)$ is graphed
with $a<b$. Find the values of a and b. It may also help to draw the
envelope on the graph. The envelope is the cosine function.



[Sorry for no graph. At every odd number, it's at $0$, and at every even number, it's at the maximum and minimum of $2$ and $-2$.]











share|cite|improve this question









New contributor




Nicholas Hulse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











Trying to solve this wave function. I appreciate anyone who chooses to help.



The problem I'm trying to solve says:




A wave with function $g(t) = 2cos(2pi a t)sin(2pi b t)$ is graphed
with $a<b$. Find the values of a and b. It may also help to draw the
envelope on the graph. The envelope is the cosine function.



[Sorry for no graph. At every odd number, it's at $0$, and at every even number, it's at the maximum and minimum of $2$ and $-2$.]








trigonometry






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Nicholas Hulse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|cite|improve this question









New contributor




Nicholas Hulse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









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share|cite|improve this question








edited 7 hours ago









Blue

46.1k869145




46.1k869145






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Nicholas Hulse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 11 hours ago









Nicholas Hulse

1




1




New contributor




Nicholas Hulse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Nicholas Hulse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Nicholas Hulse is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




put on hold as unclear what you're asking by Kavi Rama Murthy, Shailesh, 5xum, amWhy, José Carlos Santos 1 hour ago


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.






put on hold as unclear what you're asking by Kavi Rama Murthy, Shailesh, 5xum, amWhy, José Carlos Santos 1 hour ago


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.














  • For every a,b you get a g(t) graph. You are missing some data for us. Where is the graph?
    – Moti
    11 hours ago










  • sorry for no graph. At every odd number its at 0 and at every even number its at the maximum and minimum of 2 and -2.
    – Nicholas Hulse
    11 hours ago










  • Did you try to convert the equation into a sum of two sine waves?
    – Moti
    10 hours ago










  • Leaving wave function as a product instead of sum enables evaluation of two roots.
    – Narasimham
    4 hours ago


















  • For every a,b you get a g(t) graph. You are missing some data for us. Where is the graph?
    – Moti
    11 hours ago










  • sorry for no graph. At every odd number its at 0 and at every even number its at the maximum and minimum of 2 and -2.
    – Nicholas Hulse
    11 hours ago










  • Did you try to convert the equation into a sum of two sine waves?
    – Moti
    10 hours ago










  • Leaving wave function as a product instead of sum enables evaluation of two roots.
    – Narasimham
    4 hours ago
















For every a,b you get a g(t) graph. You are missing some data for us. Where is the graph?
– Moti
11 hours ago




For every a,b you get a g(t) graph. You are missing some data for us. Where is the graph?
– Moti
11 hours ago












sorry for no graph. At every odd number its at 0 and at every even number its at the maximum and minimum of 2 and -2.
– Nicholas Hulse
11 hours ago




sorry for no graph. At every odd number its at 0 and at every even number its at the maximum and minimum of 2 and -2.
– Nicholas Hulse
11 hours ago












Did you try to convert the equation into a sum of two sine waves?
– Moti
10 hours ago




Did you try to convert the equation into a sum of two sine waves?
– Moti
10 hours ago












Leaving wave function as a product instead of sum enables evaluation of two roots.
– Narasimham
4 hours ago




Leaving wave function as a product instead of sum enables evaluation of two roots.
– Narasimham
4 hours ago















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