Question

Задание на последовательность

Answer 1

$b2 = - 2 \times \frac{1}{b1} = - 2 \times \frac{1}{ - 6 } = \frac{1}{3} \\ b3 = - 2 \times \frac{1}{ \frac{1}{3} } = - 6 \\ b4 = - 2 \times ( \frac{ 1}{ - 6} ) = \frac{1}{3} \\ b5 = - 2 \times \frac{1}{b4} = - 2 \times \frac{1}{ \frac{1}{3} } = - 6$