Sandra wants to evaluate 2 cot Her work is shown below. What did she do wrong?

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:
[tex]2cot(-\frac{9\pi}{2})\neq2cot(\frac{9\pi}{2})[/tex]
3. So, you can coclude that the first step is wrong. Therefore, the answer is the first option.
Answer:
1. B,D
2.A
3.C
4.C
100%
Step-by-step explanation: