Contact us
Choose a category below so we can get back to you as quickly as possible.
-2+(-6)=-2+6×2^0×(-1)^1=-8(-8)+12=(-8)+6×2^1×(-1)^2=44+(-24)=4+6×2^2×(-1)^3=-20-20+48=-20+6×2^3×(-1)^4=2828+(-96)=28+6×2^4×(-1)^5=-68規律:從第二項開始,每一項都等於它前面一項與另一項的和.另…
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.