breathmath.com
Trigonometry Exercise 13.4 – Class 10
Trigonometry Exercise 13.4 – Solutions: Evaluate: tan65˚/cot25˚ sin18˚/cos72˚ iii. cos48˚- sin42˚ cosec31˚ – sec59˚ cot34˚ – tan56˚ sin36˚/cos54˚ – sin54˚/cos36˚ vii. sec70˚ sin20…