Tuesday, September 22, 2015

Tuesday = Start Studying!

No formal homework tonight!

I added a link to a "textbook companion site" that goes along with your textbook! I also added Ms. Blaisdell's class page! Check them out!

Tomorrow we will continue with our "new stuff," developing the unit circle! This unit circle will serve as the foundation for the majority of our work for the next couple months!

Of course we have our first test on Friday! Start studying now! I will be after school tomorrow if you need help, but Thursday is a half day so I won't be here!

Here's a list of what's on your test: (textbook section # in parentheses)

  • Use a graphing calculator to evaluate trig functions (4.3)
    • Ex: sin(2.34) = ?, cos(154 degrees) = ?, sec(2pi/3) = ?, cot(139 degrees) = ?
  • SOHCAHTOA "Word Problems" (4.3)
    • Draw a triangle to model the scenario
    • Use trig ratios to find a missing side length
    • Use trig inverses to find missing angle measures
    • Know angles of elevation and angles of depression (how to draw them)
  • Solve triangles (4.3)
    • Use trig ratios and/or trig inverses to find all side lengths and angle measures
    • Also, use Pythagorean theorem! And know that angles of a triangle sum (add up to) 180 degrees!
  • Define the 6 trig ratios given a triangle (and "theta") (4.3)
    • Be sure you know the 6 ratios! Study, study, study!
  • Define the (remaining 5) trig ratios given one ratio (4.3)
    • Example: Given sin(x) = 3/5, draw a triangle, choose/identify an angle theta, find the third side of the triangle (Pythag.), and then define the remaining 5 ratios!
  • Convert angle measures to radians (4.1)
  • Convert angle measures to degrees (4.1)
  • Find complements and supplements in degrees (4.1)
  • Find coterminal angles (+/-) in degrees (4.1)
  • Find complements and supplements in radians (4.1)
    • Use common denominators/fractions to solve--no converting to degrees!
  • Find coterminal angles (+/-) in radians (4.1)
  • Sketch angles in standard position (radians and degrees) (4.1)
  • Find the measure of a reference angle
    • Remember, reference angles are formed by the terminal side of an angle and the X axis!


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