\(tanx+\frac{cosx}{1+sinx}=\frac{sinx}{cosx}+\frac{cosx}{1+sinx}=\frac{sinx+sin^2x+cos^2x}{\left(1+sinx\right)cosx}=\frac{1+sinx}{\left(1+sinx\right)cosx}=\frac{1}{cosx}\)
\(tanx+\frac{cosx}{1+sinx}\)
\(=\frac{cosx}{1+sinx}+\frac{sinx}{cosx}\)
\(=\frac{cos^2x}{cosx.\left(sinx+1\right)}+\frac{sinx.\left(sinx+1\right)}{cosx.\left(sinx+1\right)}\)
\(=\frac{cos^2x+sinx.\left(sinx+1\right)}{cosx.\left(sinx+1\right)}\)
\(=\frac{1-sin^2x+\left(1+sinx\right)sinx}{\left(1+sinx\right).cosx}\)
\(=\frac{sinx+1}{cosx.\left(sinx+1\right)}\)
\(=\frac{1}{cosx}\)