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Syllabus

Express each of the following in terms of trigonometric ratios of angles lying between 0° and 45°. sec78° + cosec56° - Mathematics

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Sum

Express each of the following in terms of trigonometric ratios of angles lying between 0° and 45°.

sec78° + cosec56°

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Solution

sec78°+cosec56°

=sec(90°−12°)+cosec(90°−34°)

=cosec12°+sec34°

Concept: Trigonometric Ratios of Some Special Angles
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Chapter 7: Trigonometric Ratios of Complementary Angles - Exercises [Page 814]
Q 8.3

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RS Aggarwal Secondary School Class 10 Maths
Chapter 7 Trigonometric Ratios of Complementary Angles
Exercises | Q 8.3 | Page 814

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