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CBSE Maths eBooks

CBSE Guess > eBooks > Class X > Maths Part II by Mr. M. P. Keshari

Chapter 12: Trigonometry

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Trigonometry Ratio of Complementary Angles

Let us consider a triangle ABC right angled at B. Let

Example 6. Without using trigonometirc tables, evaluate:

Solution:-

= -6

 

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