Khan Academy
Khan Academy: Trig Challenge Problem: Arithmetic Progression
Sal solves a very complicated algebraic trig problem that appeared as problem 29 in the 2010 IIT JEE Paper I exam.
Khan Academy
Khan Academy: Trig Challenge Problem: Maximum Value
Sal solves a very complicated algebraic trig problem that appeared as problem 48 in the 2010 IIT JEE Paper I exam.
Khan Academy
Khan Academy: Trig Challenge Problem: Multiple Constraints
In this video [12:48] Sal solves a very complicated algebraic trig problem that appeared as problem 47 in the 2010 IIT JEE Paper I exam.