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Sinx and cosx functions

  • Thread starter Ry122
  • Start date
  • #1
565
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What differences is there between a sinx and cosx function?
Do they both use this equation?
y=Asin(BX+C)+D
 

Answers and Replies

  • #2
cristo
Staff Emeritus
Science Advisor
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  • #3
565
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That's too in depth for me.
I just wanted to know the difference between
y=sinx and y=cosx when graphed.
 
  • #4
cristo
Staff Emeritus
Science Advisor
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Ok, try this: http://faculty.ed.umuc.edu/~swalsh/Math%20Articles/Graphing%20Sin%20Cos.html [Broken]
 
Last edited by a moderator:
  • #5
Gib Z
Homework Helper
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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 (90degrees-x)= 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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