$\frac{1+sinA}{1-sinA}$ is equal to?

$\frac{1+sinA}{1-sinA}$ is equal to?
1). $\frac{cosecA -1}{cosecA +1}$
2). $\frac{cosecA +1}{cosecA -1}$
3). $\frac{secA + 1}{secA -1}$
4). $\frac{secA - 1}{secA +1}$

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