First, x=1 is a vertical line. A line that is perpendicular would be horizontal so it would have a slope of 0. A line parallel to it would be vertical too so it would have and infinite gradient.
You are getting the right one!
All the solutions to sin(x) is 0°,180°,360° as you've chosen
You can refer to the graph for reference^
hope it helps!
Answer:
you have to put the answer in to a improper fraction and then square what the numbers that are in each 729/25 is your answer
Answer:
Irrational
Step-by-step explanation: