² log 20 + ² log 12 - ² log 75 + ² log 5 = a. 1 b. 2 c. 3 d. 4 e. 5

Logaritma

[tex] {}^{2} log(20 \times 12 \div 75 \times 5) \\ = {}^{2} log(16) \\ = {}^{2} log( {2}^{4} ) \\ = 4 {}^{2} log(2 ) \\ = 4(1) \\ = 4[/tex]

Jawaban : d.4

4 × 2 log 2 = 4 × 1 = 4
Jawabannya d. 4

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