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Pertanyaan

Jika p lo g a = 2 dan , maka 2 p lo g a p q 2 ​ = ...

Jika  dan size 12px log presuperscript size 12px q size 12px space size 12px 8 size 12px p size 12px equals size 12px 2, maka ...

  1. begin mathsize 12px style 3 space log presuperscript 2 space 2 p end style

  2. begin mathsize 12px style log presuperscript 2 space 2 p end style

  3. begin mathsize 12px style fraction numerator 3 over denominator log presuperscript 2 space 2 p end fraction end style

  4. begin mathsize 12px style fraction numerator 1 over denominator log presuperscript 2 space 2 p end fraction end style

  5. fraction numerator size 12px 3 over denominator size 12px log presuperscript size 12px 2 size 12px space size 12px 2 size 12px p end fraction

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F. Pratama

Master Teacher

Mahasiswa/Alumni Universitas Putra Indonesia YPTK Padang

Jawaban terverifikasi

Pembahasan

Perhatikan definisi logaritma jika dan hanya jika menjadi menjadi Selesaikan persamaan yang ditanyakan Substitusikan nilai dan ke dalam Karena

Perhatikan definisi logaritma

begin mathsize 12px style log presuperscript g space a equals n end style jika dan hanya jika begin mathsize 12px style g to the power of n equals a end style

undefined menjadi begin mathsize 12px style p squared equals a comma space log presuperscript q space 8 p equals 2 end style menjadi begin mathsize 12px style q squared equals 8 p end style

Selesaikan persamaan yang ditanyakan

Substitusikan nilai begin mathsize 12px style p squared end style dan size 12px q to the power of size 12px 2 ke dalam begin mathsize 12px style log presuperscript 2 p end presuperscript fraction numerator p q squared over denominator a end fraction end style

size 12px p presuperscript size 12px 2 size 12px space size 12px log fraction numerator size 12px p size 12px q to the power of size 12px 2 over denominator size 12px a end fraction  size 12px equals size 12px log presuperscript size 12px 2 size 12px p end presuperscript fraction numerator size 12px p size 12px times size 12px 8 size 12px p over denominator size 12px p to the power of size 12px 2 end fraction  size 12px equals size 12px log presuperscript size 12px 2 size 12px p end presuperscript size 12px space size 12px 8  size 12px equals size 12px log presuperscript size 12px 2 size 12px p end presuperscript size 12px space size 12px 2 to the power of size 12px 3  size 12px equals size 12px 3 size 12px times size 12px log presuperscript size 12px 2 size 12px p end presuperscript size 12px space size 12px 2

Karena begin mathsize 12px style log presuperscript blank presuperscript 2 p end presuperscript end presuperscript space 2 equals fraction numerator 1 over denominator log presuperscript 2 space 2 p end fraction space m e n j a d i space 3 times fraction numerator 1 over denominator log presuperscript 2 space 2 p end fraction equals fraction numerator 3 over denominator log presuperscript 2 space 2 p end fraction end style

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