Homework SourseDoubleAngle OwebassignnetwebStude Simplify to an expression
Double-Angle, --> O|webassign.net/web/Stude Simplify to an expression of the form (a sin()). 6 sin( ) 6 Recall the douase-angle formula for sin(20). In the contex Additional Materials eBook Double-Angle Identities Submit Answer Save ProgressPractice Another Version 5. 454/4.54 points | Previous Answers OSCAT1 9.3.111 Find the exact value using half-angle formulas. 5 sin( 8) 
Solution
6 sin(pi/6) 6 cos (pi/6)
18(2 sin(pi/6) cos (pi/6))
This is of the form 2 sin theta cos theta= sin(2 theta)
So we get
18 sin(2pi/6) = 18 sin(pi/3)
