Pertanyaan

x → 1 lim 4 x 2 + 5 x − 9 3 x 2 + 4 x − 7 = ....

$x \to 1 lim \frac{3 x ^{2} + 4 x - 7}{4 x ^{2} + 5 x - 9} = ....$

D. Enty

Master Teacher

Jawaban terverifikasi

Pembahasan

Dengan begitu, opsi jawban yang tepat adalah A.

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell limit as x rightwards arrow 1 of fraction numerator 3 x squared plus 4 x minus 7 over denominator 4 x squared plus 5 x minus 9 end fraction end cell equals cell limit as x rightwards arrow 1 of fraction numerator left parenthesis 3 x plus 7 right parenthesis left parenthesis x minus 1 right parenthesis over denominator left parenthesis 4 x plus 9 right parenthesis left parenthesis x minus 1 right parenthesis end fraction end cell row blank equals cell limit as x rightwards arrow 1 of fraction numerator 3 x plus 7 over denominator 4 x plus 9 end fraction end cell row blank equals cell fraction numerator 3 plus 7 over denominator 4 plus 9 end fraction end cell row blank equals cell 10 over 13 end cell end table end style$

Dengan begitu, opsi jawban yang tepat adalah A.