Introduction to Trigonometry

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Chapter 8 Excercise 8. 3

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Introduction to trigonometry: 

Introduction to trigonometry CHAPTER – 8 EXERCISE – 8.3

QUESTION 1 :- Evaluate : (i) sin 18o (ii) tan 26o cos72o cot 64o: 

QUESTION 1 :- Evaluate : (i) sin 18o (ii) tan 26o cos72o cot 64o

(iii) cos48o – sin 42o (iv) cosec 31o – sec 59o: 

(iii) cos48o – sin 42o (iv) cosec 31o – sec 59o

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