U2=6. U3=9. a=......?
Matematika
IndahCahyaniRahman
Pertanyaan
U2=6. U3=9. a=......?
2 Jawaban
-
1. Jawaban yourvin
U2 = 6
a + b = 6
a = 6-b
U3 = 9
a +2b = 9
6-b +2b = 9
6+b =9
b = 3
maka a =6-3=3 -
2. Jawaban rioabadisitumorang
ar = 6
ar² = 9
_____:
1 / r = 2/3
r = 3/2
a (3/2) = 6
a = 6 x 2/3 = 4