Contact us
Choose a category below so we can get back to you as quickly as possible.
(1)a1=6-2×1=4 a2=6-2×2=2 a3=6-2×3=0 a4=6-2×4=-2 a5=6-2×5=-4 s5=4+2+0+(-2)+(-4)=0 (2)s5-s3=a4+a5=(-2)+(-4)=-6
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.