Question

Ex 26!!!!!!!!!!!!!!!!

Answer 1

Explicație pas cu pas:

$\frac{b_4}{b_1} =\frac{b_1 \cdot q^3}{b_1} = q^3=8 \implies q=\sqrt[3]{2^3} =2\\\boxed{q=2}\\S_8=255\\b_1\cdot \frac{2^{8}-1}{2-1} =255\\b_1 \cdot (256-1)=255\\b_1\cdot 255=255 \implies \boxed{b_1=1}$