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When and how do I use proof by induction?

If you have a claim which says something about every element in a list of elements with each element depending on previous elements, induction might be a useful starting point. In your exams, that "l...

Answered by Steven R. • Further Mathematics tutor

3336 Views

Given log3(3b + 1) - log3(a-2) = -1 for a > 2. Express b in terms of a.

We can start by recognising one of our properties of log. That is log_a(x) - log_a(y) = log_a(x/y). Performing this on our question we get: log₃((3b+1)/(a-2)) = -1...

Answered by Jason W. • Maths tutor

15798 Views

How should I structure my essays?

Bearing in mind that you will have no more than 30-45 minutes to write an essay, your answer will have to be concise and selective. Answers that score highly are those that directly address the question. ...

Answered by Alice D. • History tutor

2987 Views

How does crossing over occur during meiosis?

Genetic variation is important because it allows natural selection to act on the population. Individuals that inherit advantagous alleles are more likely to survive and successfully reproduce. Crossing ov...

Answered by Tamara A. • Biology tutor

16086 Views