# Trig Question

Over the interval (-2 pi, 2 pi), state where the following would be true:
a) sin theta is increasing
b) cos theta is decreasing

...Anyone know?

Christina De Rose
Sin theta increases as the value of y increases. Cos theta increases as the value of x increases.

Take a look at the figure here: http://www.blc.edu/fac/rbuelow/calc/imageIOH.JPG [Broken]

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