I Question 11 B 0/10 pts '0 3 Z 99 (9 Details Using a double-angle or half-angle formula to simplify the given expressions. Leave answers in exact form. (a) If 0052(39") 7 sin2(39) : cos(A ), then (b) If 6052(93) 7 shgm) : cos(B), then . Question 12 0/10 pts ) 3 99 0 Details tan( - 180 - 0)sin( - 180 + 0)tan( - 360 + 0)sin(20) tan(180 - 0)cos( - 270 + 0)cos(180 - 0)sin( - 180 + 0) make angles simple, acute and positive Simplify the fraction Use fundamental identities to fully simplify to a single ratio (if necessary)