I need help with #1.b)
I got tan θ = -1.7, with θ = -59.5°. I got tan θ right, while θ = 120.5° in the textbook.
How should I get an answer of 120.5°?
+128474 You have the correct idea.....
The angle that you found is a reference angle of 59.5° in the 4th quadrant
But....If you look carefully, you will note that the measure of this angle plus the measure of θ = 180°
So....to find θ....we have that
59.5 + θ = 180 subtract 59.5 from both sides
θ = 120.5°
