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प्रश्न
Express each of the following in terms of trigonometric ratios of angles lying between 0° and 45°.
sec78° + cosec56°
उत्तर
sec78°+cosec56°
=sec(90°−12°)+cosec(90°−34°)
=cosec12°+sec34°
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संबंधित प्रश्न
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Given A = 60° and B = 30°,
prove that : sin (A + B) = sin A cos B + cos A sin B
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show that:
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find the value of: cos2 60° + sec2 30° + tan2 45°
find the value of :
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If A = 30o, then prove that :
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