The angle

is in Quadrant 1 and cos of an angle in quadrant 1 is always positive
Domain: possible x values
Range: possible y values
Solution: domain: all real numbers
Range: y greater than 0
Answer:

Step-by-step explanation:
1 has been divided into three equal parts. Each of these parts is 1/3. Let's calculate how many times 1/3 is in 3.