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Jika 0 , 3 + 0 , 08 ​ ​ = a ​ + b ​ , maka a 1 ​ + b 1 ​ = ...

  1. 25

  2. 20

  3. 15

  4. 10

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N. Rahayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

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Pembahasan

square root of 0 comma 3 plus square root of 0 comma 08 end root end root  equals square root of 0 comma 3 space plus space 2 square root of 0 comma 02 end root end root  equals square root of open parentheses 0 comma 2 plus 0 comma 1 close parentheses space plus space 2 square root of 0 comma 2 x 0 comma 1 end root end root  equals square root of 0 comma 2 end root space plus square root of 0 comma 1 end root    square root of a space plus square root of b space equals space square root of 1 fifth end root plus square root of 1 over 10 end root  dengan space keidentikan comma space maka space diperoleh space straight a equals 1 fifth space dan space straight b equals 1 over 10 comma space sehingga space nilai  1 over straight a plus 1 over straight b equals fraction numerator 1 over denominator begin display style 1 fifth end style end fraction plus fraction numerator 1 over denominator begin display style 1 over 10 end style end fraction equals 5 plus 10 space equals space 15

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