Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
You are not logged in.
#1 2008-12-01 00:16:54
- ganesh
- Moderator
Offline
High School Mathematics - Trignometry.
1. Simplify;-
2.Prove that
3. Prove that
4. Show that:
5. If A = 60°, and B = 30°, verify that
(i) sin (A + B) = sinA cosB + cosA sinB
(ii) cos(A + B) = cosA cosB - sinA sinB
Character is who you are when no one is looking.