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Using the product rule :u = x, so du/dx = 1
v = sin(x), so dv/dx = cos(x)
Therefore dy/dx = v(du/dx) + u(dv/dx) So dy/dx = sin(x) + x.cos(x)

Through the lens of a feminist critic, there are a great many ways in which to interpret the poetry of Sylvia Plath. In the poem ‘Spinster’ Plath presents a narrator who rejects her suitors, inst...

Gov should try place monetary value on welfare loss - this may be difficult tax would increase cost of production for firms - they supply less (shown on supply and demand diagram)tax would deter customers...

A thermoset is a plastic that changes from a liquid to a solid when heat is applied, in the same way that a cake does. They are difficult to recycle as they cannot be melted since the process is irreversi...

Both are translated as 'to be', but ser is generally used for permanent qualities, whereas estar is normally used for temporary conditions or states- this is ideal to use as a general rule of thumb. Howev...