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Given that y = 16x + x^-1, find the two values of x for which dy/dx = 0

Expected layout of answer in an exam: y = 16x + x -1 dy/dx = 16 - x -2 dy/dx = 0 implies that 16 - x -2 = 0this implies that 16 = x -2 16 = 1/x 2 16x 2 = 1x 2 = 1/16therefore x = +/- 1/4x = 1/4, x = -1/4 whe...
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Answered by Sawdah H. • Maths tutor
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I don't quite understand classical conditioning, can you talk me through it?

Some stimuli provoke an innate reaction—for example, a loud noise causes most people to startle. If I suddenly made a loud noise and you weren't expecting it, you'd probably jump a little. There are some sti...
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Answered by Abbie M. • Psychology tutor
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How are verbs inflected for aspect in English?

There are four different types of aspect in English: simple, perfect, progressive and perfect progressive. The perfect aspect is used for actions that have been completed, while the progressive shows that an...
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Describe el uso del color rojo en las películas de Almodóvar.

Mientras que el color rojo tiene un uso estético en las películas de Almodóvar (como está presente en casi todas las escenas), también actuar como un presentimiento que tanto el público como el personaje en ...
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Answered by Aasiya S. • Spanish tutor
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How do you deal with remembering all the knowledge required for organic chemistry questions?

You should organise your knowledge by separating synthetic routes into categories, for example: drawing the synthetic pathways of benzenes separately to those of phenols. You should then make posters or flas...
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Answered by Kess R. • Chemistry tutor
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