(1) Answers
[latex]tan A = \frac{1}{cot A} cot A = \frac{1}{tan A} [/latex] [latex] \frac{1}{cot A} / \frac{1}{tanA} =1[/latex]
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[latex]tan A = \frac{1}{cot A} cot A = \frac{1}{tan A} [/latex] [latex] \frac{1}{cot A} / \frac{1}{tanA} =1[/latex]