Maharashtra State BoardSSC (English Medium) 9th Standard
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Syllabus
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Fill in the Blank. - Geometry

Sum

Fill in the blank.

cos 40° = sin ______°

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Solution

cos 40° = sin (90° - 40° ) = sin 50°                     [cosθ = sin (90° - θ)]

Concept: Trigonometric Ratios and Its Reciprocal
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Chapter 8: Trigonometry - Problem Set 8 [Page 113]
Q 5.3
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Balbharati Mathematics 2 Geometry 9th Standard Maharashtra State Board
Chapter 8 Trigonometry
Problem Set 8 | Q 5.3 | Page 113
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