
<=> cosx = +1/2 or cosx = -1/2;
cosx = +1/2 => x = +π/3 + 2kπ, where k is an integer or x = -π/3 + 2kπ, where k is an integer;
cosx = -1/2 => x = +2π/3 + 2kπ, where k is an integer or x = -2π/3 + 2kπ, where k is an integer;
Answer: around 47-49
Step-by-step explanation:
Answer:
NO IT WOULD BE 0
Step-by-step explanation:
12 - b = -2
12 + 2 = b
14 = b