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LG 2-3 Inverse Trig Functions

LG 2-3 Inverse Trig Functions. Complete the FRONT (unit circle page) of the worksheet. What is an inverse trig function? . Instead of giving the coordinate for the angle, you give the angle for a coordinate. .

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LG 2-3 Inverse Trig Functions

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  1. LG 2-3 Inverse Trig Functions Complete the FRONT (unit circle page) of the worksheet

  2. What is an inverse trig function? Instead of giving the coordinate for the angle, you give the angle for a coordinate.

  3. The inverse of a function can be found by reversing the order of each ordered pair in the given function.

  4. Ranges and Domains of Inverse Trig Functions

  5. Examples:

  6. Sometimes, you will encounter the composition of trig functions with inverse trig functions. The following are pretty straightforward compositions. Did you suspect the answer was going to be 120o? This problem behaved differently because 120o is outside the range of the arcsin. So use some caution when evaluating the composition of inverse trig functions.

  7. Practice Negative ratios for arccos generate angles in Quadrant _____ Negative ratios for arcsin generate angles in Quadrant _____ Negative ratios for arctan generate angles in Quadrant _____ Complete the problems on the back of your warm up

  8. How to check your answers… • Use the “second” feature on your calculator • 2nd SIN(-.5) = • *your calc should be in degree mode or you will get a rounded radian answer • For the secant, cosecant, or cotangent functions: • 2nd SIN ( 1/ #) = • For composition problems, you can enter them straight into your calc • 2nd SIN (SIN (270o) =

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