Pertanyaan

Tentukan hasil operasi bilangan berpangkat berikut! d. b − 9 × b e. 8 − 5 ÷ 8 − 2 f. 1 , 5 5 ÷ 1 , 5 3

Tentukan hasil operasi bilangan berpangkat berikut!

d. $b^{- 9} \times b$
e. $8^{- 5} \div 8^{- 2}$
f. $1, 5^{5} \div 1, 5^{3}$

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D. Rajib

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Mahasiswa/Alumni Universitas Muhammadiyah Malang

Jawaban terverifikasi

Jawaban

hasil dari , , dan .

hasil dari b to the power of negative 9 end exponent cross times b equals 1 over b to the power of 8

8 to the power of negative 5 end exponent divided by 8 to the power of negative 2 end exponent equals 1 over 512

, dan

1 comma 5 to the power of 5 divided by 1 comma 5 cubed equals 2 comma 25

Pembahasan

Ingatlah sifat-sifat bilangan berpangkat berikut. Berdasarkan sifat-sifat di atas, maka: d) e) f) Dengan demikian, hasil dari , , dan .

Ingatlah sifat-sifat bilangan berpangkat berikut.

Berdasarkan sifat-sifat di atas, maka:

table attributes columnalign right center left columnspacing 0px end attributes row cell b to the power of negative 9 end exponent cross times b end cell equals cell b to the power of negative 9 plus 1 end exponent end cell row blank equals cell b to the power of negative 8 end exponent end cell row blank equals cell 1 over b to the power of 8 end cell end table

table attributes columnalign right center left columnspacing 0px end attributes row cell 1 comma 5 to the power of 5 divided by 1 comma 5 cubed end cell equals cell 1 comma 5 to the power of 5 minus 3 end exponent end cell row blank equals cell 1 comma 5 squared end cell row blank equals cell 2 comma 25 end cell end table

Dengan demikian, hasil dari b to the power of negative 9 end exponent cross times b equals 1 over b to the power of 8 , 8 to the power of negative 5 end exponent divided by 8 to the power of negative 2 end exponent equals 1 over 512 , dan 1 comma 5 to the power of 5 divided by 1 comma 5 cubed equals 2 comma 25 .