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What is 2/3 + 1/4?

When adding or subtracting fractions, we must always start by putting the fractions over the same denominator , that is the number on the bottom half of the fraction. To do this, we need to find a number whi...
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Answered by Catherine C. • Maths tutor
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What is genetic diversity?

Genetic diversity is a measure of the number of alleles (The amount of genetic variety) in a given population.
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Answered by Sam M. • Biology tutor
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Differentiate the function f(x) = sin(x)/(x^2 +1) , giving your answer in the form of a single fraction. Is x=0 a stationary point of this curve?

The key concepts to apply in this question will be the product and chain rules, namely: if f(x)=g(x)h(h), then f'(x)=g(x)h'(x) + g'(x)h(x), and if h(x)=u(v(x)), then h'(x)=u'(v(x))v'(x). Equivalently, you ma...
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Answered by Bromlyn C. • Maths tutor
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To what extent do males and females display cooperation and competition in same sex interactions to prove dominance?

Over many years, language has been categorised on the basis of gender suggesting that 'Men are from Mars and Women are from Venus'; a view adopted by John Gray. Difference theorists like Jane Pilkington advo...
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How do I write a conclusion in a timed essay that will be time effective and achieve top marks?

A conclusion is a summary of the key arguments that have been presented throughout the essay. It is the last part of your essay that an examiner will read and so it's vital to conlude and answer the question...
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Answered by Isabel J. • English tutor
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