Question

Dik: a=45° dan β=60°,,hitunglah..a.2xsin45°xcos60°,,,b.sin 45°xcos 60°+ sin 60°xcos45°,,

Answer 1

A) 2 sin 45 cos 60 = 2( 1/2 √2)(1/2) = 1/2 √2

b) sin 45 cos 60 + sin 60 cos 45 =
=(1/2 √2 )(1/2) + (1/2 √3)(1/2 √2)
= 1/4 √2 + 1/4 √6
= 1/4 (√2 +√6)