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Sinx and cosx functions 
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#1
Apr207, 05:12 PM

P: 517

What differences is there between a sinx and cosx function?
Do they both use this equation? y=Asin(BX+C)+D 


#2
Apr207, 05:14 PM

Mentor
P: 8,325

Well no, because thats the sine function, and not the cosine function! This may help: http://en.wikipedia.org/wiki/Trigonometric_function



#3
Apr207, 06:11 PM

P: 517

That's too in depth for me.
I just wanted to know the difference between y=sinx and y=cosx when graphed. 


#4
Apr207, 06:12 PM

Mentor
P: 8,325

Sinx and cosx functions
Ok, try this: http://faculty.ed.umuc.edu/~swalsh/M...Sin%20Cos.html



#5
Apr307, 02:16 AM

HW Helper
P: 3,348

Maybe cristo just missed it, but Ry122 is actually right, cosine can also be expressed in that form of asin(bx+c) + d.
This happens because sin (90degreesx)= cos x. So in answer to your original question, the difference when graphed between sin x and cos x is that the cos graph is the same as sins, moved back 90 degrees to the left. 


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