Question

1) sin 30°x cos 300° + tan 225°=
2) sin 240°+ tan 30°
____________=
sin 240°- tan 30°

please kak bantuin

Answer 1

Verified answer

Jawab

1. sin 30  . cos 300 + tan 225
= 1/2. 1/2. + 1
= 1 + 1
= 2

2. (sin 240 + tan 30) /(sin 240 - tan 30)
= ( - 1/2 √3 + 1/3 √3) / (-1/2√3 - 1/3 √3)
= (-3 √3 + 2√3)/ (-3√3 - 2√3)
= - √3/ -5 √3
= 1/5