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How do I find the stationary points of a curve?

For a curve where y = f(x) the gradient of the curve is the derivative of this equation dy/dx. Stationary points of a curve occur when the gradient of the curve is zero. Hence find the expression for dy/dx a...
AM
Answered by Anna M. • Maths tutor
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Outline criticisms surrounding the current law on murder.

One criticism with the law on murder is the wide mens rea element. The mens rea for murder is with malice aforethought express or implied, meaning someone with the direct intention to kill (Mohan) will be li...
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Answered by Bryony D. • Law tutor
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What is Foucault's theory of panopticism?

Foucault used panopticism to explain how we monitor our behaviour because we've internalised the feeling of being watched. To better understand it, it may be useful to look at where he got this analogy from....
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Calculate the relative formula mass (Mr) of BaCO3

So relative formula mass (M r ) just means the total mass of all the atoms within our molecule. So lets work out how many of each atom we have: Ba - 1, C - 1, O - 3Now we know the relative atomic mass of eac...
MH
Answered by Max H. • Chemistry tutor
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Solve 2x-5=3x+4

2x-5=3x+4 Firstly, you move the +4 to the other side (-5-4=-9). The equation should now look like: 2x-9=3x. You then move the 2x to the other side (3x-2x=x) so your answer would be x=-9
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Answered by Amelia W. • Maths tutor
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