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Use the chain rule to differentiate y=1/x^2-2x-1

First we will rewrite y so it is written with a power: y=1/x 2 -2x-1=(x 2 -2x-1) -1 Now let u=x 2 -2x-1 => du/dx = 2x -2 Writing y in terms of u: y=u -1 => dy/du= -u -2 = - 1/u 2 using the chain rule: ...
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Answered by Alicia P. • Maths tutor
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Integration question 1 - C1 2016 edexcel

Answer has to be explained verbally. A full written proof can be given.
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Answered by Mihir P. • Maths tutor
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Surds question 3 - C1 2016 Edexcel

Answer has to be explained verbally. I can provide a full written proof.
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Answered by Mihir P. • Maths tutor
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How and why do anarchists reject all forms of authority

Anarchists reject all forms of authority as they have a very optimistic view of human nature. Therefore, believe there is no need for external influence on human nature to avoid coercion. As a result, author...
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How can I remember the order to place object pronouns in when a sentence has more than one?

There is an order to object pronouns that has a diagram you can write out or say in your head to place each object pronoun in the sentence. Me Te Le Lui y en Se La Leur Nous Les Vous So for example: "Je...
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Answered by Clara L. • French tutor
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