मराठी

Without Using Trigonometric Tables, Evaluate : Sin 16 ∘ Cos 74 ∘

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प्रश्न

Without using trigonometric tables, evaluate :
`sin 16^circ/cos 74^circ`

बेरीज
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उत्तर

`sin 16^circ/cos 74^circ`

= `sin (90^circ - 74^circ)/cos 74^circ`

= `cos 74^circ/cos 74^circ` [∵ sin (90-θ) = cos θ ]

= 1

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पाठ 12: Trigonometric Ratios of Some Complemantary Angles - Exercises [पृष्ठ ३१२]

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आर. एस. अग्रवाल Mathematics [English] Class 10
पाठ 12 Trigonometric Ratios of Some Complemantary Angles
Exercises | Q 1.1 | पृष्ठ ३१२
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