Write the expression as an algebraic expression in u, u>0.

Last updated: 7/16/2022

Write the expression as an algebraic expression in u, u>0. tan( cos^-1( 2/√u^2+4)) tan( cos^-1( 2/√u^2+4))= (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression. Rationalize all denominators.)