What is the reference angle for the angle with measure −π/4

π

−7π/4

π/4

7π/4

Lexi0402
Jan 1, 2018

#1**0 **

1) What is -pi/4 in degrees? What quadrant is it in?

2) The reference angle is the one from the poisitve, or negative x axix.

Willl you use the positve x axis OR the negative x axis for this quadrant?

3) What reference (acute) angle will give the same trig ratios?

Think about my questions, if you get stuck let me know where :)

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Here are a couple of general videos that might help with this topic.

https://www.youtube.com/watch?v=gBdkYEbaawA

Melody
Jan 1, 2018