2.46 Let Q(x) = Vr. Prove that the function Q is uniformly continuous on [0, o). (Hint: See Exercise 2.21.) For Reference 2.21 † Let Q(x) = VT, which is defined for all x > 0. Prove: QE C[0, ∞0). (Hint: If a > 0, and e > 0, we seek 8 > 0 such that x > 0 and |x – a| < ô implies |Q(x) – Q(a)| < e. Begin by showing that |VE – Val < lx – a|.) %3!

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