The range of the function is:

MATHEMATICS · Single correct · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

The range of the function f(x)=x−1+23−xf(x)=\sqrt{x-1}+2\sqrt{3-x} is: (1) [2,22][\sqrt{2},2\sqrt{2}] (2) [2,10][\sqrt{2},\sqrt{10}] (3) [22,10][2\sqrt{2},\sqrt{10}] (4) [1,3][1,3]

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