Top network posts

• 33 How do you revise material that you already half-know, without getting bored and demotivated?
• 18 My teacher describes absolute value confusingly: $|x|=\pm x,\quad \text{if}\enspace x>0 $.
• 13 "There exists some people..." or "There exist some people..."?
• 8 How do I solve $\lim\limits_{x\to\infty} \ \frac{\ln \ x}{x} = 0$?
• 5 Proof verification for differential equation for certain theorem!
• 5 How does the trigonometric identity $1 + \cot^2\theta = \csc^2\theta$ derive from the identity $\sin^2\theta + \cos^2\theta = 1$?
• 5 Argument of $-1+\sqrt3i$
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