document.write( "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? \n" ); document.write( "
Algebra.Com's Answer #146131 by stanbon(75887)\"\" \"About 
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?
\n" ); document.write( "-------------------------------
\n" ); document.write( "Try cos(5pi/2) which is the same as cos(pi/2) = 0
\n" ); document.write( "-----------
\n" ); document.write( "Since sec is the inverse of cos, sec(5pi/2) is undefined.
\n" ); document.write( "---------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );