Find the value of 'A', if cot 3A = 1 - Mathematics

Find the value of 'A', if cot 3A = 1

Sum

cot 3A = 1
⇒ cot 3A = cot 45°
⇒ 3A = 45°
⇒ A = 15°.

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Trigonometric Equation Problem and Solution

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