TÍNH TÍCH  −  −  −   −  −  −  −   − A, I= 1 1 1 1 ...

100.2

4 9 16 10000 2.2 3.3 4.4 100.100 2.3.4...100 2.3.4...100

18

. . ...

J = 4 10 18 1558 1.4 2.5 3.8 38.41

. . .... . . ....

J = =

b, Ta có: 2 5 9 779

3 6 10 780

6 12 20 1560 2.3 3.4 4.5 39.40

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