Question

Simplify
1) 1+1÷[{1+1÷(1+1/3)}]
2) (4.23)^2-(2.71)^2/4.29-2.71
3) √200+√621+√16
4) (√81+√0.81+√0.0081)×√10000
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Answer 1

Answer:

1. 1+1÷[{1+1÷(1+1/3)}]

2÷[{2÷2/3}]

2÷[{2×3/2}]

2÷6/2

2×2/6

2/3