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CBSE|CLASS X|MATHS WORKSHEET|TRIGONOMETRY

For Easy way of learning IIT JEE math to watch and subscribe YouTube|MATHSTIMES_THIRUMURUGAN Page 1 INTRODUCTION TO TRIGONOMETRY 1) If sin cos , find the value of ' '. 2) If sin A = 5 3, calculate cos A 3) Evaluate: cos 480cos 420 - sin 480 sin 420 4) If A, B and C are the interior angles of a triangle ABC, then show that