0 ^ { \circ } \leq x \leq 90 ^ { \circ } \text { and } 1 + \tan ^ { 2 – InterviewSolution

1.	0 ^ { \circ } \leq x \leq 90 ^ { \circ } \text { and } 1 + \tan ^ { 2 } x - 2 \tan x = 0 \text { then find value of } x
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