Anpuj
Bilangan 54 dan 72 kita ubah sedemikian sehingga membentuk kelipatan 2 atau 3. kenapa? karena yang diketahui hanya f(2) dan f(3), jadi f(54) = f(9 x 6) = f(9) + f(6) berdasarkan sifat f(axb) = f(a) + f(b) = f(3 x 3) + f(2 x 3) = (f(3) + f(3)) +(f(2) + f(3)) =(10 + 10) + (7 + 10) =20 + 17 =37
f(2x3) = 7 + 10
f(6) = 17
f(6x3) = 17 + 10 = 27
f(18x3) = 27 + 10
f(54) = 37
f(18x2) = 27 + 7 =34
f(36x2) = 34 + 7
f(72) = 41
f(54) = f(9 x 6) = f(9) + f(6) berdasarkan sifat f(axb) = f(a) + f(b)
= f(3 x 3) + f(2 x 3)
= (f(3) + f(3)) +(f(2) + f(3))
=(10 + 10) + (7 + 10)
=20 + 17
=37
semoga membantu dan mudah dipahami
#FunWithMath