Problem 185 (difficulty: 3/10)

Prove that \(\displaystyle a_n\ge0\) and \(\displaystyle a_n\to a\) implies \(\displaystyle \sqrt{a_n}\to\sqrt{a}\).

Give me another random problem!

Subject, section:
Requested difficulty:
Request for a concrete problem:I want problem no.

Supported by the Higher Education Restructuring Fund allocated to ELTE by the Hungarian Government