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State whether the following are true or false. Justify your answer. cot A is not defined for A = 0°. - Mathematics

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Question

State whether the following are true or false. Justify your answer.

cot A is not defined for A = 0°.

Options

  • True

  • False

MCQ
True or False
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Solution

This statement is False.

Explanation:

cot A is not defined for A = 0°

As,

cot A = `cos A/sin A`

cot 0° = `(cos 0°)/(sin 0°)`

= `1/0` 

= 0°

Hence, the given statement is true.

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Chapter 8: Introduction to Trigonometry - Exercise 8.2 [Page 187]

APPEARS IN

NCERT Mathematics [English] Class 10
Chapter 8 Introduction to Trigonometry
Exercise 8.2 | Q 4.5 | Page 187
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