Answer:956012
Step-by-step explanation:
What are you trying to prove here? I know when step will be the use of the Transitive Property. If a=b, and b=c, then a=c.
Correct Option:Option B
Solution:The given expression is:
cos(3x) can be written as cos(2x +x). Expanding it, we get:
Using this value of cos(3x) in given equation, we get:
Answer: Upper right corner
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How I got that answer:
The line y = x goes through (0,0) and (1,1). You would normally extend this line out as far as you can in both directions. However, the inequality x < -1 says you can only graph this if x is less than -1. We will not graph any part of the graph that is beyond x = -1 to the right. So we only have a small piece of it. The left piece of y = x. There is an open hole at the endpoint.
Similarly, y = -x is only graphed if x >= -1. We have a closed endpoint here. This graph goes through (0,0) and (1,-1). We erase the portion that is to the left of x = -1.
Doing all this leads to the upper right corner choice as our answer. The bottom right corner is close to the answer, but the open and closed endpoints are in the wrong spots.
