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tan(90-x)=cot(x) - Trigonometry

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tangent and cotangent are cofunctions of each other. The tangent of 90-x should be the same as the cotangent of x. This implies that graph of cotangent function is the same as shifting the graph of

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tan(90-x)=cot(x) - Trigonometry

How does tan (90+X) = -cot X? - Quora

How does tan (90+X) = -cot X? - Quora

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