Week 17- Precalculus 11- Skills check

Week-17

What I thought:

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The first thing I did was rearrange the equation given to find the reference angle, I input tan^{-1} (-5.2) into my calculator and I got -79. So then I decided to find the rotational angle for each quadrant, after the calculations, the four angles I got are: 79^{\circ} , 101^{\circ} , 259^{\circ} , and 281^{\circ} .

After correcting:

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After correcting I found out that there is only two degrees, and not four. So I started again, I rearranged the equation given to us to find the reference angle, which is -79. Then I saw that it was negative so I looked for the quadrants where tangent was negative. It was quadrants 2 and 4 so I did 180-79=101 and 360-79=281 , so the final answers are 101^{\circ} and 281^{\circ} .

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