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Cos 1° cos 2° cos 3°... cos 180° = ?

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Question

cos 1° cos 2° cos 3°... cos 180° = ?

Options

  • 0

  • 1

  • –1

  • `1/2`

MCQ
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Solution

0

Explanation:

Given expression = cos 1° cos 2°... cos 90° cos 91°... cos 180°   ...[∵ cos 90° = 0]

= 0

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Chapter 12: Trigonometric Ratios of Some Complemantary Angles - MULTIPLE-CHOICE QUESTIONS (MCQ) [Page 593]

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R.S. Aggarwal Mathematics [English] Class 10
Chapter 12 Trigonometric Ratios of Some Complemantary Angles
MULTIPLE-CHOICE QUESTIONS (MCQ) | Q 5. | Page 593
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