English

The value of cos 1° cos 2° cos 3°.... cos 120° is ______.

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Question

The value of cos 1° cos 2° cos 3°.... cos 120° is ______.

Fill in the Blanks
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Solution

The value of cos 1° cos 2° cos 3°.... cos 120° is 0.

Explanation:

The product includes the factor cos 90° and cos 90° = 0, so the entire product is 0.

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Chapter 10: Trigonometric Ratios - FILL IN THE BLANK TYPE QUESTIONS (FBQs) [Page 10.40]

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R.D. Sharma Mathematics [English] Class 10
Chapter 10 Trigonometric Ratios
FILL IN THE BLANK TYPE QUESTIONS (FBQs) | Q 13. | Page 10.40
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