A. 16 pangkat x sama dengan 1/2

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cari x nya,

b. log 27 + log 14- log 9 – log 7 – log 6

c. 2 . pangkat 3 log 2 + 3 . pangkat 3 log 3 – pangkat 3 log 36

d. pangkat 2 log 25 . pangkat 3 log 8 . pangkat 5 log 9

A. 16 pangkat x sama dengan 1/2

Jawaban Terkonfirmasi

A. 16^{x} = frac{1}{2}
16^{x} = 16^{-frac{1}{4}}
x = – frac{1}{4}

b. log 27 + log 14 – log 9 – log 7 – log 6 = log frac{27 x 14}{9 x 7 x 6} = log 1 = 0

c. 2 x 3log2 + 3 x 3log3 – 3log36 = 3log2^{2} + 3 – 3log36 = 3 + 3logfrac{2^{2}}{36} = 3 + 3logfrac{4}{36} = 3 + 3logfrac{1}{9} = 3 + 3log3^{-2} = 3 + (-2 x 3log3) = 3 + (-2) = 1

d. 2log25 x 3log8 x 5log9 = 2log25 x 5log9 x 3log8 = 2log5^{2} x 5log3^{2} x 3log2^{3} = 2 x 2log5 x 2 x 5log3 x 3 x 3log 2 = 12 x 2log5 x 5log3 x 3log2 = 12 x 2log2 = 12 x 1 = 12

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