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Pertanyaan

jika 9 m + 9 m + 1 = 20 , maka 2 7 m = ...

jika, maka

  1. square root of 2

  2. 2 square root of 2

  3. 3 square root of 2

  4. 4

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N. Rahayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Pembahasan

jadi,

9 to the power of m plus space 9 to the power of m plus 1 end exponent space equals space 20  left right double arrow 9 to the power of m space end exponent plus space 9.9 to the power of m space end exponent equals space 20  left right double arrow left parenthesis 1 space plus space 9 right parenthesis.9 to the power of m equals space 20  left right double arrow 10.9 to the power of m space equals space 20  left right double arrow 9 to the power of m equals space 2  left right double arrow 3 squared m equals space 2  left right double arrow 3 m equals 2 to the power of 1 half end exponent

jadi,

27 to the power of straight m equals left parenthesis 3 cubed right parenthesis to the power of straight m equals left parenthesis 3 to the power of straight m right parenthesis cubed  space space space space space space space equals open parentheses 2 to the power of 1 half end exponent close parentheses cubed equals 2 to the power of 3 over 2 end exponent equals 2 square root of 2

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