Posted by BreAnne on Friday, February 3, 2012 at 1:41pm.
What is the domain, range, and period of y= sin x + 1
What is the domain, range, and period of y= cos x
Can someone please help?

trig  Steve, Friday, February 3, 2012 at 3:08pm
domain of sin(x) and cos(x) is all reals
period of sin(x) and cos(x) is 2pi
range of sin(x) and cos(x) is [1,1]
sin(x)+1 is just like sin(x) but raised +1 on y, so all that's changed is the range: [0,2]
cos(x) is just cos(x) reflected in the xaxis, so nothing is changed.

trig  BreAnne, Friday, February 3, 2012 at 4:07pm
thank you!
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