Q=3 s5=484 b1? b5? b3=0,024 s3=0,504 b1? q? - вопрос №3656111354841530024305041 от kuzmin06 06.02.2020 18:49

Question

Алгебра: Q=3 s5=484 b1? b5? b3=0,024 s3=0,504 b1? q?

kuzmin06 · Answer

1)b1=s(q-1)/(q^5-1)=484*2/242=4b5=b1q^4=4*81=3242)b1=s(q-1)/(q^3-1)=s/(q^2+q+1)b3=b1q^2⇒b1=b3/q^2s/(q^2+q+1)=b3/q^221/(q^2+q+1)=1/q²21q²=q²+q+120q²-q-1=0D=1+80=81q1=(1-9)/40=-1/5⇒b1=0,024/0,04=0,6q2=(1+9)/40=1/4⇒b1=0,024:1/16=0,384...