Here's the question you clicked on:
GeeVee
Find dy/dx if y=1+sinx/1-sinx
\[\frac{ (cosx)(1-sinx)-(1+sinx)(-cosx) }{ (1-sinx)^{2} }\]by the quotient rule
which simplifies to \[\frac{ 2cosx }{ (1-sinx)^{2} }\]
i guess it will be (1+sinx)/(1-sinx) then derv = ((cos x)(1-sinx) - (-cos x)(1+sin x))/(1-sin x)^2 ...