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How do I use the product rule for derivatives?

Imagine a function f(x)=g(x)*h(x) [that is, two functions multiplied together] To find the derivative, f'(x)=g'(x)*h(x) + g(x)*h'(x) For example, f(x) = (3x 2 )*(cos x ) [g(x)=3x 2 , h(x)=cosx] f'(x) = (6x) ...
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Answered by James W. • Maths tutor
4297 Views

Solve 3(3x - 2) = 5x + 10

9x - 6 = 5x + 10 9x - 6 - 5x = 5x + 10 - 5x 4x - 6 = 10 4x - 6 + 6 = 10 + 6 4x = 16 x = 16/4 = 4
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Answered by Suraj P. • Maths tutor
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How can we calculate the sinus of 120°?

We can observe that120° represents the sum of two common angles: 30° and 90°. So we can rewrite sin(120°) as sin(30°+90°). Now we are going to use this trigonometric formula in order to calculate the sinuns:...
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Answered by Monica M. • Maths tutor
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How should my time be managed during the IB History Paper One?

For the paper one, unfortunately time is not on your side. You have one hour to complete 4 comprehensive questions in the best way possible. You should think of the exam in terms of precision, don't waste yo...
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Answered by Christina K. • History tutor
3794 Views

How would I structure a 'discuss' question?

Firstly I would breakdown a discuss question into two parts, outline and evaluate and then for each paragraph you should outline key studies and then evaluate them. You should structure each paragraph using ...
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Answered by Hannah C. • Psychology tutor
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