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

You are not logged in. #1 20090110 02:28:25
Senior level #1The levels of difficulty vary from question to question. Don't judge about the questions too early! a 3. Differentiate with respect to x: . 4. Differentiate with respect to x: . 5. Differentiate with respect to x: . 6. Differentiate with respect to x: . 7. If , show that . 8. If , show that . Character is who you are when no one is looking. 