Question

If sin(x) = 5/13, and x is in quadrant 1, then tan(x/2) equals what?

Answer 1

sin^-1 (5/13)=22.61986495

tan(22.61986595/2)=0.2 or 1/5

Answer 2

Use Pythagros therom
1.) sin x=5/13
sin is opp/hyp
2.) make triangle and solve for tangent
tan=opp/adj
3.) so tanx= 5/12
Understand?

Answer 3

Thanks guys!

Answer 4

welcome, keep it simple, do it the way i did, you only use arc trig fucntions for angles