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INTRODUCTION TO TRICONSSVETRY EXERCISE 8...

INTRODUCTION TO TRICONSSVETRY EXERCISE 8.2 1. Evaluate the following: sin 60° cos 30° + sin 30° cos 60° ) 2 tan 45º+cos30e - sin 60 cos 45º sec 30° + cosec 30 sin 30° + tan 45º - cosec 60P 5 cos? 60° + 4 sec? 30° - tan45° sec 30° + cos 60° - cot 45° sin? 30° + cos30° 2. Choose the correct option and justify your choice : 2 tan 30 1+tan? 30° A sin 60° (B) cos 60 O tan 60- D) sin 30- 1 - tan? 450 m) 1+tan450 (A) tan 90° (B) 1 Csin 45 (D) 0 (m) sin 2A = 2 sin A is true when A= (A) 0 (B) 30 (C) 450 (D) 60 12 tan 30° (iv) 1-tan? 30° (A) cos 60° BY sin 60° (C) tan 60 D) sin 30°

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