Answer:
cos -60° = ,
cos 660° =
Step-by-step explanation:
hope it helps
Answer: 3 for the first one. and 2 for the second
Answer:
Step-by-step explanation:
To find the inverse of a function, we must substitute in y for f(x), swap the locations of y and x, and then solve for y
Answer:
Step-by-step explanation:
z = 180 - (180 - 114.8) - 45.6 = 114.8-45.6 = 69.2°