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Use l’Hôpital’s rule to find lim(csc(x) - cot(x)) as x -> 0.

This question relies partially on remembering the trigonometric identities, csc(x) = 1/(sin(x)) and cot(x) = 1/(tan(x)) = cos(x)/sin(x). Plugging these values into the equation, we want to find Lim((1-...

FS
11842 Views

What is a Force Field analysis and how can it be applied?

Force Filed analysis is a decision making tool analysing the forces for and against a decision or change. It is divided into driving forces (advantages) and restraining forces (disadvantages). A weight...

AG
9682 Views

Differentiate y = e^(x^2 - 3x).

This question is an example of the chain rule for differentiating. 

Firstly, identify the inner function. In this case, it is x- 3x. This function must be differentiated firs...

ES
Answered by Ellie S. Maths tutor
12052 Views

Find cos4x in terms of cosx.

As with any question involving sines and cosines, consider complex numbers as a likely way to find the answer. For this particular kind of question, where sin/cos of a multiple of x is needed in terms ...

ES
Answered by Ellie S. Maths tutor
19103 Views

How do I derive the indefinite integral of sine?

The integral of sine is pretty easy to remember as it is -cos + C. However you need to be able to prove this, without using the integral of cosine. This method uses sines exponential form.

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LC
Answered by Lucile C. Maths tutor
2626 Views

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