A point on the terminal side of an angle, θ, in standard position has coordinates P(−3, 4). Sketch a diagram showing this angle θ.

Question

Determine r = distance from the origin to P. Finally, write down the value of the six trigonometric functions of θ.

Answer 1

r = 5...you should recognize this 3-4-5 right triangle situation.  The reference angle is ensconced in the second quadrant.