SOLUTION: Find the terminal point P(x, y) on the unit circle determined by the given value of t. t = − 3π/4? Would the answer be: -√(2)/2, -√(2)/2? Thank you

Algebra ->  Trigonometry-basics -> SOLUTION: Find the terminal point P(x, y) on the unit circle determined by the given value of t. t = − 3π/4? Would the answer be: -√(2)/2, -√(2)/2? Thank you      Log On


   

Question 918952: Find the terminal point P(x, y) on the unit circle determined by the given value of t. t = − 3π/4?
Would the answer be: -√(2)/2, -√(2)/2?
Thank you
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!


Yes, you're right. The red arc represents -3pi%2F4. The negative sign
of -3pi%2F4 tells us that the arc sweeps in the CLOCKWISE direction from
the point (1,0), towards (-1,0).
Something else: if we write -3pi%2F4 as expr%28-3%2F4%29pi, we can
interpret the 3%2F4 as telling us to sweep around the unit circle three-
fourths of the way from (1,0) on the far right toward (-1,0) on the far left
in the CLOCKWISE direction.
Edwin