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Evaluate the following: tan 12 ° cot 78 ° - Mathematics

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Question

Evaluate the following: `(tan12°)/(cot78°)`

Sum
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Solution

`(tan12°)/(cot78°)`

= `(tan(90° - 78°))/(cot78°)`

= `(cot78°)/(cot78°)`
= 1.

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Trigonometric Equation Problem and Solution
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Chapter 27: Trigonometrical Ratios of Standard Angles - Exercise 27.3

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Frank Mathematics [English] Class 9 ICSE
Chapter 27 Trigonometrical Ratios of Standard Angles
Exercise 27.3 | Q 1.3
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