Answer:
Which measure?
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Answer:
He has one.
Step-by-step explanation:
He has five, and gives sarah four. That means that you take all but one away from 5. 5-4=1.
Step-by-step explanation:
y=-3/4 ÷ -4/3
y=+9/16
Answer: The first option.
Step-by-step explanation:
1. You need to remember that:
- An even function is a function with the following property:
f(-x)=f(x)
- An odd function is a function with the following property:
f(-x)=-f(x)
2. By definition, the contangent is an odd function, therefore you have that:
cot(-θ)=-cot(θ)
Then:

3. So, you can coclude that the first step is wrong. Therefore, the answer is the first option.