• Support PF! Buy your school textbooks, materials and every day products Here!

A Probelem with sketching circular functions

  • #1
Can anyone please explain to me steps involved in sketching sin , cos , tan and their inverse function ?
Thanks a lot
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
Homework Helper
41,791
919
I assume you mean graphing y= sin(x), y= cos(x), y= tan(x) and the graphs of the inverse functions, y= arcsin(x), y= arccos(x), y= arctan(x).

Pick a number of values for x, say, x= 0, [itex]\pm \pi/4[/itex], [itex]\pm \pi/2[/itex],[itex]3\pi/4[/itex], etc. Calculate the corresponding y values, sin(0), cos(0), tan(0), etc. and mark the points [itex](0, sin(0))[/itex], [itex](\pi/4, sin(\pi/4)[/itex], etc. then draw a smooth curve through those points to graph y= sin(x) and do the corresponding thing for y= cos(x) and y= tan(x). For the inverse functions, reverse the (x,y) pairs, mark those points and then draw a smooth curve through those.
 

Related Threads for: A Probelem with sketching circular functions

  • Last Post
Replies
1
Views
779
  • Last Post
Replies
3
Views
715
  • Last Post
Replies
8
Views
1K
  • Last Post
Replies
6
Views
530
Replies
3
Views
1K
Replies
3
Views
1K
Replies
10
Views
3K
Replies
1
Views
1K
Top