trig
posted by popy on .
4 costheta +3sintheta=5,4sintheta3costheta=WHAT

4 sin(90theta) + 3 sintheta
= 5.4 sintheta 3 sin(90theta)
7 sin(90theta) = 2.4 sintheta
7costheta = 2.4sintheta
tantheta = 2.917
theta = 71.08 degrees
Proceed to calculate either side of the original equation.