मराठी

The value of: cosec 40° cos 50° + sin 50° sec 40° is ______.

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प्रश्न

The value of: cosec 40° cos 50° + sin 50° sec 40° is ______.

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उत्तर

The value of: cosec 40° cos 50° + sin 50° sec 40° is 2.

Explanation:

Using complementary angle conversions (csc 40° = sec 50° and cos 50° = sin 40°):

sec 50° cos 50° + sin 50° csc 50°

= 1 + 1

= 2

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पाठ 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - EXERCISE 21 (F) [पृष्ठ ३३३]

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सेलिना Concise Mathematics [English] Class 9 ICSE
पाठ 21 Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals]
EXERCISE 21 (F) | Q 1. (d) | पृष्ठ ३३३
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