Question

So sánh : A = 1 . 3 . 5 .7 . ..... .59 và B = 31/2 . 32/2. ....... . 60/2

Answer 1

\(B=\frac{31}{2}.\frac{32}{2}.....\frac{60}{2}\)

\(B=\left(31.32.33....60\right).\frac{1.2.3....60}{2^{30.\left(1.2.3...30\right)}}\)

\(B=\left(1.3.5.....59\right).\frac{2.4.6.....60}{2.4.6....60}=1.3.5...59\)

=> \(B=A\)