हिंदी

Evaluate : Cos 22 ° Sin 68 °

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प्रश्न

Evaluate : `(cos22°)/(sin 68°)`

योग
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उत्तर

`(cos22°)/(sin 68°)`

= `cos(90° - 68°)/(sin68°)`

= `(sin 68°)/(sin68°)`

 =1

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अध्याय 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - EXERCISE 21 (F) [पृष्ठ ३३४]

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सेलिना Concise Mathematics [English] Class 9 ICSE
अध्याय 21 Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals]
EXERCISE 21 (F) | Q 2. (i) | पृष्ठ ३३४
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