# Stuck on trig

• Feb 20th 2009, 10:32 AM
Prog
Stuck on trig
I am rotating a 2 perpendicular fixed lines 6.5°.
How would I calculate Y1 (vertical change of the end points) and X1 (horizontal change of end points)?
• Feb 20th 2009, 11:35 AM
running-gag
Hi

Using complex numbers (there are other methods) I can find :

$X_1 = 2500 \cos(6.5°) - 3000 \sin(6.5°) -2500 = -355.68$

$Y_1 = 2500 \sin(6.5°) + 3000 \cos(6.5°) - 3000 = 263.72$