摘要
主要利用幂级数展开式证明了e~(1/tm~(1/2))(m=1,2,3,…,n,t=1,2,3,…,n)是无理数.
The results that e~(1/tm~(1/2))(m,t=1,2,…,n)are irrational numbers are proved by making use of the power series expansion of the exponential function.
引文
[1]Euler L.An essay on continued fractions[J].Mathematical Systems Theory,1985,18:295-328.
[2]Aigner M,Ziegler G M.Proofs from THE BOOK[M].4th ed.Berlin,New York:Springer-Verlag,2009.
[3]Hardy G H,Wright E M.An Introduction To The Theory of Numbers[M].4th ed.Oxford:Oxford University Press,1960.
[4]Nathan J A.The Irrationality of ex For Nonzero Rational x[J].Amer.Math.Monthly,1998,105(8):762-763.
[5]东洪平.利用幂级数判别无理数[J].甘肃高师学报,2009,14(5):136-137.
[6]东洪平,邱晓鹏.e~(1/tm~(1/2))、sin1/m~(1/2)、cos1/m~(1/2)都是无理数[J].甘肃高师学报,2017,22(3):12-15.