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See all »- The speed of an express train is x km/h and the speed of an ordinary train is 12 km/h less than that of the express train. If the...
- 1. If sec 5A= cosec(A + 36), find A. 2. if tan A=n.tanB and sin A= m.sinB, prove that cos2 A= (m2...
- (sec17/cosec73) + (tan68/cot22) + cos2 44 + cos2 46 Evaluate without using trigonometric tables.



