i no cos 30 is root 3 over 2
but like how would i figure that in an exam
do i just learn all the special angles?
x Turn on thread page Beta
can some1 just help me out a quickie watch
- Thread Starter
- 12-04-2006 21:25
- 12-04-2006 21:49
or draw 2 triangles,
1st - angles of 90, 60, 30 and then the lengths 1,2, root 3
2nd - angles of 45, 45, 90 and lengths of 1,1, and root 2
then use trig to work out the angles
- 12-04-2006 22:29
thats certainly the best way or you could do what i did and learn to reaconise the decimal expansions from the calc. lol
- 12-04-2006 22:43
Due to the sheer number of times you'll come across them it's best to just learn the trig values for 0,30,45,60,90. Doesn't take much to learn them but it will save you a lot of time.