babydoll332
Find the amplitude y = 5 sin 1/4x



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babydoll332
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pi/5 correct

ganeshie8
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just 5

babydoll332
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how so? please if u can explain?

ganeshie8
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y = a sin(bx+c)
amplitude = a
period = 2pi/b

babydoll332
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ohh ok

ganeshie8
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i see you've used the period relation :)

babydoll332
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yaa lol

babydoll332
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thanks :)

ganeshie8
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np, yw :)