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How do i approach a long answer question in order to gain full marks?

My approach is to break down the question. In the case of long answer- questions, examiners want to firstly know that you understand a question before answering. Let's use the following example: Explain how ...
SC
Answered by Silouanos C. • Biology tutor
3909 Views

Use the product rule to differentiate y=2xsinx

The product rule states that y=uv and dy/dx=(u)dv/dx + (v)du/dx. As the equation is in this form we can let u=2x and v=sinx. Therefore du/dx=2 and dv/dx=cosx. Substituting for u and v we get dy/dx=(2x)(cosx)...
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Answered by Georgianna K. • Maths tutor
15713 Views

How should I approach an unseen piece of text in an exam?

Firstly, read through the text carefully and try to get your bearings within it. Ask yourself some basic questions to begin: what kind of text is this? Is it prose, poetry, a newspaper article? Who is speaki...
ER
Answered by Emily R. • English tutor
2281 Views

Solve the simultaneous equations: 5x + 3y = 41 and 2x + 3y = 20 Do not use trial and error.

5x + 3y = 41 2) 2x + 3y = 20 Subtract equation 2) from equation 1) to cancel the y's (3y-3y = 0) . Next we subtract the x's (5x - 2x = 3x) and then finally we have 41 - 20 = 21. We now have that 3x = 21 ( re...
DT
Answered by David T. • Maths tutor
20863 Views

Solve the equation "x^2 + 3x - 4 = 0".

Recognise that quadratic can be factorised: (x+4)(x-1)=0 This gives the solutions x=-4 and x=1 by inspection.
ZK
Answered by Zak K. • Maths tutor
3861 Views