Answer:
Step-by-step explanation:
<em>Add similar into elements. Add the numbers from left to right.</em>
<em>-3v-2v=-5v</em>
<em>Simplify.</em>
<em>-5v>35</em>
<em>Multiply by -1 from both sides of equation.</em>
<em>(-5v)(-1)<35(-1)</em>
<em>Simplify.</em>
<em>35(-1)=-35</em>
<em>5v<-35</em>
<em>Divide by 5 from both sides of equation.</em>
<em>5v/5<-35/5</em>
<em>Simplify, to find the answer.</em>
<em>-35/5=-7</em>
<em>v<-7 is the correct answer.</em>
<em>I hope this helps you, and have a wonderful day! </em>
Answer: The first option.
Step-by-step explanation:
1. To solve this exercise 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 this 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.