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

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.

45

step-by-step explanation:

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450