This online calculator might be useful...

Wednesday, November 17, 2010

HW for Nov. 17 (Wed)

1) If you turn ______ degrees, you will end up facing the same way.

2) How many angles exist that are coterminal to 50 degrees?

3) A 90 degree angle intersects the unit circle at what (x,y) coordinate?

4) A 240 degree angle lies in the III quadrant. What would the sign of the coordinates be, at the place where this angle intersects the unit circle?

(+,+)
(+,-)
(-,+)
(-,-)

Wednesday, November 10, 2010

HW for Nov. 10 (Wed)

1) What is the reference angle for a 120 degree angle?

2) What is the reference angle for a 285 degree angle?

3) What is the reference angle for a 40 degree angle?

4) What is the reference angle for a -45 degree angle? (HINT: think negative=moving clockwise, NOT counterclockwise, from the positive x-axis)

5) What geometric shape does the reference angle help us to make?

Tuesday, November 9, 2010

HW for Nov. 9 (Tues)

1) If we travel 60 degrees into the third (III) quadrant, what angle would we be at? (answer with " _____ degrees")

2) If we travelled 45 degrees into quadrant II...

3) If we travelled 30 degrees into quadrant IV...

Monday, November 8, 2010

HW for Nov. 8 (Mon)

1) Which trig functions take an angle as an input, and give you a ratio of side lengths as an output? (there are three)

2) and 3) Finish through problem #6 of the 'sighted angle' word problems that we were working on in class. Show your work.

Wednesday, November 3, 2010

Homework for Nov. 3 (Wednesday)

We took a pop-quiz today, so no new math for the HW... instead:

1) When is the last day to make up any missing ("mi") assignments, before Q1 grades go in?

2) When is the last day to retake the pop-quiz that we took today?

3) What is so special about getting at least a 'check' on your e-homework for this first week (Nov. 1-5)?