The believe the answer is
10. FAE
In symbols, sqrt(648) = 2^a * 3^b.
One way in which to tackle this is to factor *648.
648 = 81*8.
Note that 81 = 3^4 and that 8 = 2^3.
Therefore, a = 4 and b = 3.
Answer:
1. A/P=3000/500=6
2. e^i pi+1=0
it would be 4 x25 and 5 x20
