Jawab:
Pernyataan [1.] dan [2.]
BENAR

Penjelasan:
Diketahui fungsi
f(x) = ²log(2x) - 1

[1.]  Jika  x = 1
f(1) = ²log(2(1)) - 1
f(1) = ²log2 - 1
f(1) = 1 - 1
f(1) = 0  (betul)

[2]  Jika  x = 2
f(2) = ²log(2(2)) - 1
f(2) = ²log4 - 1
f(2) = 2 - 1
f(2) = 1  (betul)

[3]  Jika  x = 3
f(3) = ²log(2(3)) - 1
f(3) = ²log6 - 1
f(3) = ²log6 - ²log2
f(3) = ²log(6/2)
f(3) = ²log3 (salah)

[4]  Jika  x = 4
f(4) = ²log(2(4)) - 1
f(4) = ²log8 - 1
f(4) = 3 - 1
f(4) = 2  (salah)

Pernyataan [1.] dan [2.]
BENAR

(xcvi)