If sin (2x) = cos (7x), then what is the value of x
1 answer:
You might be interested in
Answer:
x > - 3
Step-by-step explanation:
x + 2 > -
First turn 2
into an fraction since its easier. So it becomes
x + > -
<u> - </u><u> - </u>
<u> </u> Do inverse operations, so subtract
from both sides.
x > - Combine -
with -
, which gives us -
x > - 3 Since we know that 6 divided by 2 is 3.
This would not allow me to attach an image so I am going to type a visual representation f what the graph would look like below)
<-------------O--------------------------------------------------->
-5 -4 -3 -2 -1 0 1 2 3 4 5
So, the number line would be a solid line rather than dashed (but I was not able to attach an image so I kind of had to improvise). When using ≥ ≤ sings the circle of the point is closed. When using < and > signs, the circle of the point is open. Thus, in this scenario since he sign is >, then the circle of the point is open. The direction of the arrow and ray for this equality is going to the right because the answer is that x is greater than - 3, Therefore any values greater than - 3 are a possibility which is why the arrow goes on indefinitely.