a. sec(225) = 1/cos(225) = -sqrt(2),
3rd QUAD.
b. sin(-15) = sin(345) = -0.2588,4th QUAD.
c. sin(75) = 0.9659,1st QUAD
4. Evaluate the following, give exact value when possible.
a. sec(225) = 2.72
b. sin(-15) – 0.065
c. sin(75) = -0.39
Are these the correct answers? I feel like there should be an equation... I'm confused
1 answer