175 2. Jika = + maka + = + + 3. Jika = + maka 1 + = + + 2 CONTOH: 2 Tentukanlah (2 + 3) ! PENYELESAIAN: 2 2 2 + 3 = [4 + 12 + 9] 2 = 4 + 12 + 9 1 1 = 4 3 + 12 2 + 9 3 2 4 3 2 = + 6 + 9 + 3 ′ ′ 1 3 2 1 2 = , = 3 2 ′ = 1 Matematika Dasar