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‘Appetite – whether for power, knowledge or sex – is always a destructive force.’ In the light of this view, discuss ways in which writers present appetite. In your answer, compare one drama text and one poetry text.

Both Christina Rossetti and John Webster explore how an unconstrained appetite results in suffering. Webster’s Ferdinand desires power over his sister’s sexuality, knowledge of her intimacies (he instruct...

Answered by Jasmine C. • English tutor

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Given that y = (sin(6x))(sec(2x) ), find dy/dx

We can find dy/dx by using the product rule: If y=uv then dy/dx = u (dv/dx)+ v (du/dx). In this question u= sin(6x) and v= sec(2x).So du/dx= 6cos(6x) and dv/dx=2sec(2x)tan(2x), using our rules for differe...

Answered by Eli H. • Maths tutor

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Measles, mumps and rubella (MMR) are dangerous diseases that can be fatal to children. The MMR vaccine is given to children at a young age to produce antibodies against these diseases. Describe how giving the vaccine leads to the production of antibodies.

The vaccine contains weakened or dead antigens (from MMR). These antigens are displayed on antigen-presenting cells which are detected by a specific helper T cell. This stimulates a specific B cell which ...

Answered by Gracie B. • Biology tutor

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What is transpiration and what factors affect its rate of occurrence? Describe some adaptations of xerophytic plant that reduce water loss via transpiration.

Transpiration is the evaporation of water through open stomata, occurring down the water potential gradient.Factors affecting the rate of transpiration:Light intensity - more stomata will be open to take ...

Answered by Jessica T. • Biology tutor

12686 Views

a) Differentiate and b) integrate f(x)=xcos(2x) with respect to x

To differentiate xcos(2x), you first have to use the product rule, because this function is two functions (x and cos(2x) multiplied togetherNow you have x*(cos(2x))'+cos(2x)To differentiate cos(2x) you ha...

Answered by Danila M. • Maths tutor

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