1. 2. Diketahui ²log 3 = p dan ²log 5 = q. Tentukan: ²log 18 b. ²log 10 C. ²log 75
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Jawaban:
a. ²log18
= ²log(9.2) = ²log9 + ²log2 = ²log(3²) + ²log2
= 2.²log3 + ²log2 = 2.p + 1 = 2p + 1
²log18 = 2p+1
b. ²log10
= ²log(5.2) = ²log5 + ²log2 = q+1
²log10 = q+1
c. ²log75
= ²log(25.3) = ²log25 + ²log3 = ²log(5²) + ²log3
= 2.²log5 + ²log3 = 2.q+p = 2q+p
²log75 = 2q+p
Mohon dikoresi bila ada kesalahan
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