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Nilai  ....

Pertanyaan

Nilai begin mathsize 14px style limit as x rightwards arrow 7 of fraction numerator 2 x minus 14 over denominator x minus 7 end fraction equals end style ....

  1. begin mathsize 14px style 0 end style 

  2. begin mathsize 14px style 1 over 7 end style 

  3. begin mathsize 14px style 1 end style 

  4. begin mathsize 14px style 2 end style 

  5. begin mathsize 14px style 7 end style 

Pembahasan Video:

Pembahasan Soal:

Substitusi begin mathsize 14px style x equals 7 end style

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell limit as x rightwards arrow 7 of fraction numerator 2 x minus 14 over denominator x minus 7 end fraction end cell equals cell fraction numerator 2 times 7 minus 14 over denominator 7 minus 7 end fraction end cell row blank equals cell 0 over 0 end cell end table end style

Karena begin mathsize 14px style 0 over 0 end style bentuk tak tentu, maka difaktorkan dahulu

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell limit as x rightwards arrow 7 of fraction numerator 2 x minus 14 over denominator x minus 7 end fraction end cell equals cell limit as x rightwards arrow 7 of fraction numerator 2 left parenthesis x minus 7 right parenthesis over denominator x minus 7 end fraction end cell row blank equals cell limit as x rightwards arrow 7 of 2 end cell row blank equals 2 end table end style 

Jadi, jawaban yang tepat adalah D.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 12 April 2021

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