Pertanyaan

Jumlah dari x + 1 1 + x 2 − 1 1 adalah ...

Jumlah dari $\frac{1}{x + 1} + \frac{1}{x ^{2} - 1}$ adalah ...

$fraction numerator x squared over denominator x squared minus 1 end fraction$
$fraction numerator x squared plus 2 over denominator x squared minus 1 end fraction$
$fraction numerator x over denominator x squared minus 1 end fraction$
$fraction numerator 2 x over denominator x squared minus 1 end fraction$

R. RGFLLIMA

Master Teacher

Jawaban terverifikasi

Pembahasan

$fraction numerator 1 over denominator x plus 1 end fraction plus fraction numerator 1 over denominator x squared minus 1 end fraction equals fraction numerator open parentheses x minus 1 close parentheses over denominator open parentheses x minus 1 close parentheses open parentheses x plus 1 close parentheses end fraction plus fraction numerator 1 over denominator open parentheses x minus 1 close parentheses open parentheses x plus 1 close parentheses end fraction equals fraction numerator open parentheses x minus 1 close parentheses plus 1 over denominator x squared minus 1 end fraction equals fraction numerator x over denominator x squared minus 1 end fraction$