If $$y = \frac{{2 - x}}{{1 + x}},$$ then what is the value of $$\frac{1}{{y + 1}} + \frac{{2y + 1}}{{{y^2} - 1}}?$$
A. $$\frac{{\left( {1 + x} \right)\left( {2 - x} \right)}}{{2x - 1}}$$
B. $$\frac{{\left( {1 - x} \right)\left( {2 + x} \right)}}{{x - 1}}$$
C. $$\frac{{\left( {1 + x} \right)\left( {2 - x} \right)}}{{1 - 2x}}$$
D. $$\frac{{\left( {1 + x} \right)\left( {2 - x} \right)}}{{1 - x}}$$
Answer: Option C
This Question Belongs to Arithmetic Ability >> Surds And Indices
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