Submitted by Atanu Chaudhuri on Sat, 26/10/2019 - 15:31

This is the part 2 of the solutions of last 5 questions in SSC CGL Tier II Solution set 18 on trigonometry 4. All 5 problems including the advanced ones are solved quickly in a few steps using suitable concepts and techniques.

Pattern discovery and suitable use of concepts and method have by far been the main components of the quick solutions. The notable of the methods used are, complementary angle trigonometric relations, supplementary angle trigonometric relations, compound angle trigonometric relations, trigonometric ratios, sine cosine superimposed graph, surd rationalization, end state analysis approach, sub-multiple angle trigonometric relations and mathematical reasoning.