Mathematics

Mathematics

Problem

If f(x)=1tan⁡−1(x2−4x+3)f(x) = \sqrt{\frac{1}{\tan^{-1}(x^2 - 4x + 3)}} , then f(x)f(x) is continuous for a. (1,3)(1, 3) b. (−∞,0)(-\infty, 0) c. (−∞,0)∪(3,∞)(-\infty, 0) \cup (3, \infty) d. None of these

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