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De Moivres theorem states that e^j(theta) = cos (theta) +jsin (theta) and this can be used to convert powered trig functions to the form of regular sines and cosines (i.e. sin^3(x) into a sum of terms inc...

A moment about a point is the product of a force applied and the distance perpendicular to the line of action of that force. So M = F*d

You should include a historians' opinion to support or contrast the argument you have made. For example, say you were arguing for a certain time period that agrarian issues led to public discontent, and t...

The product rule states that (uv)' = u'v + uv' Therefore we know that to find dy/dx we must have (sin(2x))'(4x+1)^3 +sin(2x)((4x+1)^3)' We can differentiate sin(2x) to 2cos(2x) and using the chain rule we...

The first and most important step is to highlight all the important information that is given in the question. Sometimes, it is very easy to miss out key numbers that you might require to get to the final...