Trigonometic Functions

[(1+sinθ)/(1+cosθ)] * [(1+secθ)/(1+cosecθ)]
= [(1+sinθ)/(1+cosθ)] * [(1+1/cosθ)/(1+1/sinθ)]
= [(1+sinθ)/(1+cosθ)] * [((cosθ+1)/cosθ)/((sinθ+1)/sinθ)]
= [(1+sinθ)/(1+cosθ)] * [(cosθ+1)/(sinθ+1)] * sinθ/cosθ
= tanθ .................................after simplification