Roboguru

Jika Nilai ....

Pertanyaan

Jika

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell log presuperscript 2 space a space plus space log presuperscript 2 space b space end cell equals 12 row cell log presuperscript 2 space a space minus space log presuperscript 2 space b space end cell equals 4 end table end style

Nilai begin mathsize 14px style a plus b space equals end style....

Pembahasan Soal:

Perhatikan 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell fraction numerator log presuperscript 2 space a space plus space log presuperscript 2 space b space equals 12 log presuperscript 2 space a space minus space log presuperscript 2 space b space equals 4 over denominator space space space space space space space space space space space space space space space space space 2 log presuperscript 2 space a space equals 16 log presuperscript 2 space a space equals 8 a equals 256 end fraction plus end cell row blank blank cell fraction numerator log presuperscript 2 space a space plus space log presuperscript 2 space b space equals 12 log presuperscript 2 space a space minus space log presuperscript 2 space b space equals 4 over denominator space space space space space space space space space space space space space space space space space 2 log presuperscript 2 space b space equals 8 log presuperscript 2 space b space equals 4 b equals 16 end fraction minus end cell end table end style

sehingga, nilai begin mathsize 14px style a plus b space equals 256 plus 16 equals 272 end style.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 12 April 2021

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