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Without Using Trigonometric Tables, Evaluate : Tan 27 ∘ Cot 63 ∘ - Mathematics

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प्रश्न

Without using trigonometric tables, evaluate :

`tan 27^circ/cot 63^circ`

बेरीज
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उत्तर

`tan 27^circ/cot 63^circ`

= `tan (90^circ - 63^circ)/cot 63^circ`

= `cot 63^circ/cot 63^circ`  [`because` tan (90-θ) = cot θ]

= 1

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पाठ 7: Trigonometric Ratios of Complementary Angles - Exercises [पृष्ठ ३१२]

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आर. एस. अग्रवाल Mathematics [English] Class 10
पाठ 7 Trigonometric Ratios of Complementary Angles
Exercises | Q 1.3 | पृष्ठ ३१२
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