PrecalculusHard SharePrecalculus · Hard problemFor all real xxx, write cos(arctanx)\cos(\arctan x)cos(arctanx) as an algebraic expression in xxx.A11+x3\dfrac{1}{\sqrt{1+x^3}}1+x31B1+x21\dfrac{\sqrt{1+x^2}}{1}11+x2C11+x2\dfrac{1}{\sqrt{1+x^2}}1+x21D21+x2\dfrac{2}{\sqrt{1+x^2}}1+x22Check Show answer Walk through it step by step Practice more like this