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Pertanyaan

Nilai dari begin mathsize 14px style fraction numerator open vertical bar 3 to the power of 5 minus sign 7 cubed close vertical bar over denominator square root of open parentheses negative sign 5 squared close parentheses squared end root end fraction end style adalah ….

  1. begin mathsize 14px style negative sign 20 end style 

  2. begin mathsize 14px style negative sign 4 end style 

  3. 4

  4. 8

  5. 20

A. Rizky

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah C.

Pembahasan

Ingat bahwa

begin mathsize 14px style open vertical bar italic x close vertical bar equals open curly brackets table attributes columnalign right end attributes row cell italic x comma end cell cell text jika  end text italic x greater or equal than 0 end cell row cell negative sign italic x comma end cell cell text jika  end text italic x less than 0 end cell end table close end style 

Maka kita peroleh

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator open vertical bar 3 to the power of 5 minus sign 7 cubed close vertical bar over denominator square root of open parentheses negative sign 25 close parentheses squared end root end fraction end cell equals cell fraction numerator open vertical bar 243 minus sign 343 close vertical bar over denominator open vertical bar negative sign 5 squared close vertical bar end fraction end cell row blank equals cell fraction numerator open vertical bar negative sign 100 close vertical bar over denominator open vertical bar negative sign 25 close vertical bar end fraction end cell row blank equals cell fraction numerator negative sign open parentheses negative sign 100 close parentheses over denominator negative sign open parentheses negative sign 25 close parentheses end fraction end cell row blank equals cell 100 over 25 end cell row blank equals 4 end table end style 

Jadi, jawaban yang tepat adalah C.

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