Question

calcular
doy coronita

Answer 1

Respuesta:

B) 21^15.

Explicación paso a paso:

$\frac{21 {}^{12} \times 21 ^{14} \times {21}^{13} \times 21^{4} }{21^{28} } \\ \\ \frac{ {21}^{43} }{ {21}^{28} } = {21}^{43 - 28} \\ \\ = {21}^{15}$