Trig Question

  • Thread starter 404
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  • #1
404
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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?
 

Answers and Replies

  • #2
Christina De Rose
Draw a unit circle to help you.
Sin theta increases as the value of y increases. Cos theta increases as the value of x increases.
 
  • #3
399
1
Take a look at the figure here: http://www.blc.edu/fac/rbuelow/calc/imageIOH.JPG [Broken]
 
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