39.65 is the approximate value of arccos0.77
Answer:
hello
Step-by-step explanation:
u sayh-e-l-l-o yW
(-4,-4) is quadrant 3
(5,2) is quadrant 1
(-6,11) is quadrant 2
Answer:
Doesn't make sense.
Step-by-step explanation:
-1 ≤ cosθ ≤ 1
=> cosθ = 3√3 doesn't make sense.
