SOLUTION: I'm trying to plot points on a graph. the problem is y=3sec4x. I have all the points but one. I'm stuck at 5 pi/2. I have no idea how to find this on the unit circle. Explain plz?
Algebra.Com
Question 194801: I'm trying to plot points on a graph. the problem is y=3sec4x. I have all the points but one. I'm stuck at 5 pi/2. I have no idea how to find this on the unit circle. Explain plz?
Found 2 solutions by solver91311, stanbon:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
From the positive x-axis to the positive y-axis: 
, then from the positive y-axis to the negative x-axis another for a total of 
. Then one more quarter circle, 
. All the way back to the beginning: 
. Yep, 
is the same thing as . In fact, all angles of the form 
are the same angle 
John
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I'm trying to plot points on a graph. the problem is y=3sec4x. I have all the points but one. I'm stuck at 5 pi/2. I have no idea how to find this on the unit circle. Explain plz?
-------------------------------
Try cos(5pi/2) which is the same as cos(pi/2) = 0
-----------
Since sec is the inverse of cos, sec(5pi/2) is undefined.
---------------
Cheers,
Stan H.
RELATED QUESTIONS
Graph the function y=2sin(x-2pi/3). To draw the graph, plot all x-intercepts, minima and... (answered by stanbon)
I have been trying to figure out for the last 4 days how to submit this step by onto the... (answered by Alan3354)
Graph f(x) = –2x + 4. I am not so sure how to graph things...I have been trying the old... (answered by stanbon)
I have a graphing project that I have to submit, but I am not quite sure I know how to do (answered by stanbon)
I have to use either elimination or substitution to find the solutions and show my work.... (answered by stanbon)
I have two problems: One is How do I get thex,y points for the problem y=x^5
I used the... (answered by stanbon)
How do I graph y=2sin(4x)? Can you please do it step by step and show me where ALL the... (answered by lwsshak3)
This homework should be viewed as an individual effort but if needed ask your IA for... (answered by ikleyn)
How do I plot the points (4, -6), (-1, -5) and (-3, 2) on a graph and what does it look... (answered by College Student)