Answer:
-1.5
Step-by-step explanation:
900. You round up, because it is above 850. :-)
an = (1 + 2·(n - 1))/2^(n - 1) = 2^(1 - n)·(2·n - 1)
sn = 6 - 2·0.5^n·(2·n + 3)
A and B
Reflection and rotation