1993 AHSME Problems/Problem 26

Problem

Find the largest positive value attained by the function $f(x)=\sqrt{8x-x^2}-\sqrt{14x-x^2-48} ,\quad x \text{ a real number}$

$\text{(A) } \sqrt{7}-1\quad \text{(B) } 3\quad \text{(C) } 2\sqrt{3}\quad \text{(D) } 4\quad \text{(E) } \sqrt{55}-\sqrt{5}$

$\fbox{C}$

1993 AHSME (Problems • Answer Key • Resources)
Preceded by Problem 25	Followed by Problem 27
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