Question

[OH-YEAH^^]

CMR: \(1+\dfrac{1}{\sqrt{2}}+...+\dfrac{1}{\sqrt{2500}}< 100\)

Answer 1

[Quyet]

`1)` Ta có `:` `1/sqrt1;1/sqrt2;1/sqrt3;…;1/sqrt99>1/sqrt100`

`=>` `1/sqrt1+1/sqrt2+1/sqrt3+…+1/sqrt99+1/sqrt100>100. 1/sqrt100=100/10=10`

`=>` `đpcm`

Answer 2

[Yah PeuPeu]