Answer:
b
Step-by-step explanation:
I think 121
406 + 94 = 500 and 180 + 199 = 379.
Subtract that and 121 is what’s left.
The first one is -5,-3 ab.
X= 2 1/2 simplify it and you will get 5/2.Hope this helps. :-)
<span>∑ from 1 to infinity of n^2* e^(-2n) = (e^2 + e^4)/(e^2 - 1)^3 = 0.23768</span>
