What Are Surds? A surd is a square root that doesn’t give a whole number. So √3 and √50 are surds but √4 and √25 are...

Continue reading...## Log Equation Sample Questions

Here are some questions to go with the post on solving log equations. Answers and explanations are down at the bottom. Find the exact value of...

Continue reading...## Natural Logarithms

OK, that’s logs sorted. But what’s all this ‘e’ stuff about? What on earth is logex meant to mean? It’s the same as any other log....

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