Use the given triangle to evaluate the expression If necessary express the value without a square root in the denominator by

Question

Use the given triangle to evaluate the expression If necessary express the value without a square root in the denominator by rationalizing the denominator 4 COS COS R 4 T COS COS 4 4 2 450 459 Simplify your answer Type an exact answer using radicals as needed Use integers or fractions for any numb the expression Rationalize all denominators

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