trig

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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 -

    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 x-axis, so nothing is changed.

  • trig -

    thank you!

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