Hitunglah! 1. 2log(16.8) 2. 2log(4.64:16) 3. 4log (256:16) 4. 3log(81.27.3)

1. ²log(16.8)
= ²log16 + ²log8
= ²log2⁴ + ²log2³
= 4.²log2 + 3.²log2
= 4 + 3
= 7

2. ²log(4.64:16)
= ²log4 + ²log64 - ²log16
= ²log2² + ²log2pangkat6 - ²log2⁴
= 2.²log2 + 6.²log2 - 4.²log2
= 2 + 6 - 4
= 4

3. ⁴log(256:16)
= ⁴log256 - ⁴log16
= ⁴log4⁴ - ⁴log4²
= 4.⁴log4 - 2.⁴log4
= 4 - 2
= 2

4. ³log(81.27.3)
= ³log81 + ³log27 + ³log3
= ³log3⁴ + ³log3³ + ³log3¹
= 4.³log3 + 3.³log3 + 1.³log3
= 4 + 3 + 1
= 8