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Mathematics 19 Online
OpenStudy (anonymous):

What is the amplitude of y = -3cos(x+π/4)

OpenStudy (anonymous):

6

OpenStudy (anonymous):

how do you get that though?

OpenStudy (anonymous):

amplitude is only concernig about the number that is positioned initial part of the cos

OpenStudy (anonymous):

so wouldn't it be -3 then?

OpenStudy (anonymous):

if function which is in terms of x is Acos(x+T) then 2A is amplitude and T is period

OpenStudy (anonymous):

|dw:1347726809275:dw|amplitude means that

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