jika a=2,b=3,dan sudut(a.b)=120°,maka(3a+2b) adalah

a = 2
b = 3
a.b = 120
2.3 = 120
6 = 120

3a + 2b
3(2) + 2(3)
6 + 6 = 12
> 3a + 2b = 12

6 = 120
12 = ?

12 = 120 x 2 = 240
Jadi 3a + 2b = 240 derajat