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SInce, for y = uv, dy/dx = uv' + vu', where u' = du/dx, therefore:dy/dx = (1sin(x)) + (xcos(x)) = sin(x) + xcos(x)

The first step whenever you are given an equation is to group like terms. By this I mean put all the terms with the same letter next to it together and, in this case, the numbers without a letter. For the...

Place the mould(s) within the drag & fill with casting sand (compact well)
Turn the drag over & place the cope over the drag. Place sprue pins on the bottom of the mould(s) and fill the cope ...

Increases in temperature increase the rate of the photosynthesis reaction by providing energy, this is accurate up to a point where enzymes denature meaning they go through irreversible physical changes a...

If the unemployment in the economy is demand deficient unemployment (Keynesian unemployment), the government needs to stimulate growth in the economy and increase aggregate demand as there is a lack of de...