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Find dy/dx for y = x^3e^xcos(x)

In this problem, we see that y is a product of 3 functions of x. That means that in order to find dy/dx we need to use the product rule. The product rule tells us that in this case we should differentiate...

Answered by Lyudmil N. • Maths tutor

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Solve x² ≥ | 5x - 6 | (Question from AQA Core 3 June 2016)

To solve this question we can break it down in to a multiple small stages.

The first thing to tackle is the use of modulus around 5x - 6. This effectively means we have two equations to solve:

Answered by James H. • Maths tutor

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(i) What property does Magnesium Oxide have that makes it useful to create heat-resistant bricks to line furnaces? (ii) Explain why H2S exists as a gas and H2O exists as a liquid (at r.t.p).

(i) Magnesium oxide is an ionic compound meaning the elements reside in a lattice held together by very strong electrostatic forces of attraction between their oppositely charged ions. Since bonds are b...

Answered by Shahaab N. • Chemistry tutor

17637 Views

Why is globalisation a contentious term?

The notion of globalisation, or increasing interconnectivity, is, broadly speaking, the idea that the international order has become more interdependent in a range of areas pertaining to economic, social,...

Answered by ROBERT A. • Government and Politics tutor

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