math

g(x)=3 sin x domain and range
is the domain: {xER}
range {yEr|3< or = y}?

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  1. domain is all real x
    range is from y = -3 to y = +3

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  2. Note in this question and your last one that the range of the sine function is from -1 to +1 (same with cos or with sin (w t + phi) where phi is a constant phase angle)
    therefore range of a sin w t or a cos w t is -a to + a

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  3. oh yeah, thanks

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