Respuesta :

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:

ACCESS MORE
EDU ACCESS