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## Homework Statement

This problem came up while solving a physics problem in waves.

We have the equation cos(96πt)cos(4πt)=0

How many times does the L.H.S. become 0 during the time t=0 to t=1s ?

## The Attempt at a Solution

Nothing.

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- Thread starter zorro
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- #1

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This problem came up while solving a physics problem in waves.

We have the equation cos(96πt)cos(4πt)=0

How many times does the L.H.S. become 0 during the time t=0 to t=1s ?

Nothing.

- #2

HallsofIvy

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For what values of t is 192t an odd integer?

t can be 1/192, 1/64 and for second case t=1/8 only. But 3 times is not the correct answer.

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HallsofIvy

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Why did you divide 192 and 8 by 2? What do we get by doing that?

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Somebody help me out!!!

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HallsofIvy

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ohh..its that way!. Sometimes simple things become very complex.

I understood it now. Thank you

I understood it now. Thank you

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