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

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Question

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

Sum
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Solution

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

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Trigonometric Equation Problem and Solution
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Chapter 22: Trigonometrical Ratios of Standard Angles - Exercise 27.1

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Frank Mathematics Part 1 [English] Class 9 ICSE
Chapter 22 Trigonometrical Ratios of Standard Angles
Exercise 27.1 | Q 4.6
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