Question

СРОЧНО!! ПОМОГИТЕ !!!

Answer 1

$1)a(15;-8)\\\\|a|=\sqrt{15^{2}+(-8)^{2}} =\sqrt{225+64}=\sqrt{289} =17\\\\\\2)b(-8;15)\\\\|b|=\sqrt{(-8)^{2}+15^{2}} =\sqrt{64+225}=\sqrt{289}=17\\\\\\3)c(-16;30)\\\\|c|=\sqrt{(-16)^{2}+30^{2}}=\sqrt{256+900}=\sqrt{1156}=34\\\\\\d(30;-16)\\\\|d|=\sqrt{30^{2}+(-6)^{2}}=\sqrt{900+256}=\sqrt{1156}=34$