Review of the Trig Chart

Okay, so this week I am going to review the trig chart. You should remember this because it is one of the most important things you will learn in Advanced Math. So there are really no notes I can give you on this, so I am going to go straight into listing the trig chart for you.

sin 0= 0
sin pi/6=1/2
sin pi/4= square root of 2/2
sin pi/3= square root of 3/2
sin pi/2= 1 cos pi/2= 0

cos 0= 1
cos pi/6= square root of 3/2
cos pi/4= square root of 2/2
cos pi/3= 1/2
cos pi/2= 0

csc 0= undefined
csc pi/6= 2
csc pi/4= square root of 2
csc pi/3= 2 square root of 3/3
csc pi/2= 1

sec 0= 1
sec pi/6= 2 square root of 3/3
sec pi/4= square root of 2
sec pi/3= 2
sec pi/2= undefined

tan 0= 0

tan pi/6= square root of 3/3
tan pi/4= 1
tan pi/3= square root of 3
tan pi/2= undefined

cot 0= undefined
cot pi/6= square root of 3
cot pi/4= 1
cot pi/3= square root of 3/3
cot pi/2= 0

Well that's the trig chart! You better remember it, because it is very important. There are a few other things you may need to know.

Notes:

• pi/6=30 degrees
• pi/4=45 degrees
• pi/3=60 degrees
• pi/2=90 degrees

That's it for this week. Byeeee :)

--Halie!