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Tan-1 - Wikipedia, the free encyclopedia

Tan-1, TAN-1, tan-1, or tan −1 may refer to: tan −1 y = tan −1 (y), sometimes interpreted as arctan(y) or arctangent of y, the compositional inverse of the trigonometric function tangent (see below for ambiguity) tan −1 x = tan −1 (x), sometimes interpret...

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