Resposta :
[tex] > resolucao \\ \\ \geqslant progressao \: geometrica \\ \\ q = \frac{a2}{a1} \\ q = \frac{ - 2}{ - 1} \\ q = 2 \\ \\ \geqslant o \: decimo \: termo \: da \: pg \\ \\ an = a1 \times q {}^{n - 1} \\ an = - 1 \times 2 {}^{10 - 1} \\ an = - 1 \times 2 {}^{9} \\ an = - 1 \times 512 \\ an = - 512 \\ \\ \\ > < > < > < > < > < > < > < > < < > < > < > > > [/tex]
Resposta : Letra ( B )
