Determining if the tan(4) is positive or negative; Graphing y = -2sin(x), and stating amplitude. Solutions to a Review for a Trigonometry Test for a class. . See pdf on that site under Trig, special videos.
How can you determine if tan(4) is positive or negative?
How can you estimate how far along the unit circle 4 is?
How do you graph y = -2*sin(x)?
How do you find the period and amplitude of a trig function like y = -2*sin(x)?
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This lesson helps you visualize where a number like 4 is on the unit circle and whether the value of tan 4 would be positive or negative. Also reviewed is the graph of -2*sin(x) and how to find its amplitude and period.