Does neone no tha tangent values of a unit cirlce (pi/2, pi/3, pi/4, pi/6, 5pi/6.......) i need all of them!
2006-10-10 17:10:22 · 7 answers · asked by Lala 2 in Education & Reference ➔ Homework Help
What is a unit circle? A unit circle is a circle whose coordinates at 0,0 axis and has a radius of 1.
tan() = sin()/cos()
tan(pi/2) = undefined since cos of of pi/2 = 0
tan(pi/3) = 1.73 units
tan(pi/4) = 0.36 units
tan(pi/6) = 0.58 units
remember pi = 180degrees.
2006-10-11 01:46:31 · answer #1 · answered by The young Merlin 4 · 0⤊ 0⤋
On the unit circle, it is important to memorize the basic ones-
pi/2 is equal to 90 degress
pi is equal to 180 degress
3pi/2 is equal to 270 degress
2pi is equal to 360 degrees
To find the others, to find the angle that it is, just multply the radian you have by 180/pi.
For example, pi/3
pi/3 X 180/pi
the two pi's cancel each other, then you have 180/3
which equals 60 degrees.
2006-10-10 17:20:33 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You can do this on your calculator. Under the mode menu, change it to radians. Then do pi/2, pi/3, etc. Its easier that way although you should memorize the basic ones.
2006-10-10 17:14:26 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Your calculator will give you all those tangent values. Just push the correct buttons in the proper order.
2006-10-10 17:16:56 · answer #4 · answered by David S 5 · 0⤊ 0⤋
http://hrsbstaff.ednet.ns.ca/eplee/images/Unit%20Circle.jpg
Helpful picture of the unit circle.
Now just do the following:
sohcahtoa
sin= op/hy
cos= adj/ hy
tan= opp/ adj =Y/X
Hope it helps!
2006-10-10 17:24:26 · answer #5 · answered by Heather B 2 · 0⤊ 0⤋
i dont know...but thankx 4 remindin me i have 2 do ma hw to
2006-10-10 17:18:14 · answer #6 · answered by Just Me 4 · 0⤊ 0⤋
Sorry, I flunked trig :(
2006-10-10 18:10:10 · answer #7 · answered by maisie24 3 · 0⤊ 0⤋