If $sec^{2}A$ + $cosec^{2}A$ = X, then the value of X is

If $sec^{2}A$ + $cosec^{2}A$ = X, then the value of X is
1). $tan^{2}A$ $cot^{2}A$
2). sinA cosA
3). secA cosecA
4). $sec^{2}A$ $cosec^{2}A$

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