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Using first principles find the differential of x^2

Lim ((f(x+h)-f(x)))/h= lim(((x+h) 2 -x 2 )/h)=lim((h 2 +2xh)/h) as h tends to 0 the limit becomes 2x
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Critically evaluate research into Eye-witness testimony

Loftus and Palmer conducted (1974) a laboratory experiment which was strictly controlled, giving it high experimental validity as they could make sure that IV affected the DV. Both experiments proved that me...
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Answered by Allen J. • Psychology tutor
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if f is defined on with f(x)=x^2-2x-24(x)^0.5 for x>=0 a) find 1st derivative of f, b) find second derivative of f, c) Verify that function f has a stationary point when x = 4 (c) Determine the type stationary point.

a) f'(x)=2x-2-12x 1/2 B)f'(x)=2+6x -3/2 c)f'(4)=0d) local minimum
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What can the government do to reduce pollution (negative externality from market failure) within the community?

In order to go about a question like this, the foundations of the question must be laid out through definitions and diagrams so we can develop our analysis and evaluation.Market failure occurs because of the...
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Answered by Korede A. • Economics tutor
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Explain why the first ionisation energy of sulphur is lower than that of phosphorus.

The general trend is that the first ionisation energies increases across the period from Na to Ar. But the first ionisation energy of sulphur is lower than phosphorus because the electronic configuration is ...
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Answered by Lana R. • Chemistry tutor
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