The answer is 4 because the frequency is the number of cycles completed in one interval. Typically, the interval given is 2π. Here, you can count the cycles and get 4.
Answer: (b)
Step-by-step explanation:
Given
The function is given as

Solving the function

for 

The function is continuous at
because
exists.
If the limit exists at a point, then the function is continuous.
Answer: 2 and a half cups
Step-by-step explanation:
4. 4th option
5. 1st option
The correct answer is <u><em>(0,2)</em></u>