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Pertanyaan

Hasil dari 2 ​ ( 4 8 ​ + 3 4 ​ − 8 ​ ) adalah ....

Hasil dari  adalah ....

  1. begin mathsize 14px style 2 plus cube root of 2 squared end root minus fifth root of 2 cubed end root end style 

  2. begin mathsize 14px style fourth root of 2 to the power of 5 end root plus root index 6 of 2 to the power of 7 end root minus 4 end style 

  3. begin mathsize 14px style cube root of 2 squared end root plus fifth root of 2 cubed end root minus 4 end style 

  4. begin mathsize 14px style fifth root of 2 to the power of 4 end root plus root index 7 of 2 to the power of 6 end root minus square root of 2 cubed end root end style 

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I. Roy

Master Teacher

Mahasiswa/Alumni Universitas Negeri Surabaya

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah B.

jawaban yang tepat adalah B.

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Pembahasan

Perhatikan bahwa Dengan demikian, hasil dari adalah . Jadi, jawaban yang tepat adalah B.

Perhatikan bahwa

begin mathsize 14px style square root of 2 open parentheses fourth root of 8 plus cube root of 4 minus square root of 8 close parentheses equals square root of 2 cross times fourth root of 8 plus square root of 2 cross times cube root of 4 minus square root of 2 cross times square root of 8 equals 2 to the power of 1 half end exponent cross times 8 to the power of 1 fourth end exponent plus 2 to the power of 1 half end exponent cross times 4 to the power of 1 third end exponent minus 2 to the power of 1 half end exponent cross times 8 to the power of 1 half end exponent equals 2 to the power of 1 half end exponent cross times open parentheses 2 cubed close parentheses to the power of 1 fourth end exponent plus 2 to the power of 1 half end exponent cross times open parentheses 2 squared close parentheses to the power of 1 third end exponent minus 2 to the power of 1 half end exponent cross times open parentheses 2 cubed close parentheses to the power of 1 half end exponent equals 2 to the power of 1 half end exponent cross times 2 to the power of 3 over 4 end exponent plus 2 to the power of 1 half end exponent cross times 2 to the power of 2 over 3 end exponent minus 2 to the power of 1 half end exponent cross times 2 to the power of 3 over 2 end exponent equals 2 to the power of 1 half plus 3 over 4 end exponent plus 2 to the power of 1 half plus 2 over 3 end exponent minus 2 to the power of 1 half plus 3 over 2 end exponent equals 2 to the power of 5 over 4 end exponent plus 2 to the power of 7 over 6 end exponent minus 2 squared equals fourth root of 2 to the power of 5 end root plus root index 6 of 2 to the power of 7 end root minus 4 end style  

Dengan demikian, hasil dari undefined adalah undefined.

Jadi, jawaban yang tepat adalah B.

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Jika b = a 3 dan c = a 2 3 ​ ,maka hasil dari 45 a 6 ​ + 20 b 2 ​ − 5 c 4 ​ adalah ....

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