Question

помогите !!!!!!!!!!!!!!!

Answer 1

$b1 = - 7 \ b(n + 1) = - frac{1 }{b(n)} \ b2 = - frac{1}{b1} = - frac{1}{ - 7} = frac{1}{7} \ b3 = - frac{1}{b2} = - frac{1}{ frac{1}{7} } = - 7$
Ответ: b3=-7

Answer 2

$b_2=-frac{1}{b_1}=-frac{1}{-7}=frac{1}{7};$;

$b_3=-frac{1}{b_2}=-frac{1}{frac{1}{7}}=-7;$