\left. \begin{array} { l } { \text { If } \quad \operatorname { tan } – InterviewSolution

1.	\left. \begin{array} { l } { \text { If } \quad \operatorname { tan } x + \operatorname { cot } x = 3 } \\ { \operatorname { tan } ^ { 4 } x + \operatorname { cot } ^ { 4 } x = 47 } \end{array} \right.
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