Question

[nguyễn thành tâm]

1.

\(A = {3 \over 5}.{2017 \over 2016} - {3 \over 5}- {1 \over 2016} + {2 \over 5}\)

\(B = ({12 \over 199}+ {23 \over 200} - {34 \over 201}).({1\over 2} - {1 \over 3}-{1 \over 6})\)

\(C= 2{1 \over 3}+{11 \over 5}: 33-{1 \over 50}.\)(-5)²

\(D = {4^5 . 9^4 - 10 . 6^9 \over 2^10 . 3^8 + 6^8 . 28}\)

E =( -1).(-1)².(-1)³.(-1)⁴......(-1)²⁰¹⁴

^2.

\(A= {5\over2.4} + {5\over4.6} + {5\over6.8} + .....+ {5\over48.50}\)

\(B={1\over3.6} + {1\over6.9} + {1\over9.12} +.....+{1\over30.33}\)