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Solve for x : tan2 (x - 5°) = 3 - Mathematics

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Question

Solve for x : tan2 (x - 5°) = 3

Sum

Solution

tan2 (x – 5°) = 3
tan (x – 5°) = `sqrt3`
tan (x – 5°) =  tan 60°
x – 5° = 60°
x = 65°

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Trigonometric Equation Problem and Solution
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Chapter 23: Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios] - Exercise 23 (C) [Page 298]

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Selina Concise Mathematics [English] Class 9 ICSE
Chapter 23 Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]
Exercise 23 (C) | Q 12.06 | Page 298
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