Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #2 20130513 07:48:06
Re: Trigonometric Provehi debjit625 Using this repeatedly on the LHS, you can write T10 in terms of T8, which you can write in terms of T6 and so on. Note that So eventually you'll end up with a quadratic in Z, where all the terms cancel leaving zero as required for the RHS. Bob You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei 