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Find dy/dx when x+2y+3y^2= 2x^2+1

To solve this question we can use implicit differentiation. We can write:d/dx(x+2y+3y^2)=d/dx(2x^2+1).When differentiating something in terms of y with respect to x we can use the chain rule, this allows us ...
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Answered by Adam G. • Maths tutor
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How do I make a start on my personal statement?

Hello there!! Firstly my tips would be to write bullet points of the key things you want to put into your personal statement. Make sure you mention things like work experience, voluntary work, hobbies and ac...
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How do prokaryotes differ from eukaryotes?

Prokaryotes are single-celled organisms (e.g. bacteria) which lack any membrane bound organelles. Thus, they are anuclear (have no nucleus) and their DNA is circular and found in the nucleoid area of the pro...
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Answered by Aneesa P. • Biology tutor
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A curve is given by the equation y=x^3-11x^2+28x; find the coordinates of the points where the curve touches the x-axis.

Since the equation has a cubic term, we can expect the curve to have certain properties: it should have three points where the graph touches the x-axis, two turning points, of which one should be a minimum a...
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Answered by Lui H. • Maths tutor
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A colourless liquid is tested with silver nitrate solution and produces a white precipitate and produces a brick red flame test result. Name the compound found in the colourless liquid

The silver nitrate test is a test for halide ions and the flame test is a test for metal ions, since they produced positive results you have an ionic substance. The result of a white precipitate is the posit...
LH
Answered by Lui H. • Chemistry tutor
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