Question

Am nevoie de ajutor cu acest exercitiu!

Answer 1

$b_1=\sqrt{2} ,~q=-\sqrt{2} \\\\ b_n=b_1 \cdot q^{n-1}\\\\ b_2=\sqrt{2} \cdot \Big(-\sqrt{2} \Big)^{2-1}=\sqrt{2} \cdot \Big(-\sqrt{2} \Big)^1=-2\\\\ b_3=\sqrt{2} \cdot \Big(-\sqrt{2} \Big)^{3-1}=\sqrt{2} \cdot \Big(-\sqrt{2} \Big)^2=2\sqrt{2} \\\\ b_1=\sqrt{2} ,~b_2=-2,~b_3=2\sqrt{2} \\\\ p=b_1 \cdot b_2 \cdot b_3=\sqrt{2} \cdot (-2) \cdot 2\sqrt{2} =-2\sqrt{2} \cdot 2\sqrt{2} =-4 \cdot 2=-8$