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Prove that the derivative of tan(x) is sec^2(x).

Let y = tan(x) Recall the definition of tan(x) as sin(x)/cos(x) Therefore y = sin(x)/cos(x) Use the quotient rule, which states that for y = f(x)/g(x), dy/dx = (f'(x)g(x) - f(x)g'(x))/g 2 (x) with f(x) = sin...
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Answered by Miriam G. • Maths tutor
124226 Views

Why is Milgram's experiment on obedience considered so unethical?

Despite no real physical harm to the participant nor the confederate, Milgram's 1963 experiment broke the code of conduct in regard to what constitutes an ethical study in a number of ways, and if presented ...
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Answered by Serena S. • Psychology tutor
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What is nucleophilic substitution and how can I draw a mechanism to show this reaction taking place?

A substitution reaction is a displacement reaction. This is when one functional group in one reactant is displaced by another functional group from a second reactant.This is different to an addition reaction...
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Answered by Amber B. • Chemistry tutor
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State 2 factors that affect the centripetal force for a object having a circular path.

Answer: Can be any 2 of mass, velocity or radius of path. The formula for the centripetal force (resultant) acting F=m(v^2)/r. Therefore the variables are mass, velocity for the object and the radius of the ...
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Answered by Winston M. • Physics tutor
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How do I make sense of Spanish conjugations since they are not as complex in English? And what's the best way to learn them so I use them well?

1. The best way to learn the Spanish conjugations is to first understand their equivalent in English. In English, the verb in a sentence takes a slightly different form for each tense (e.g.: verb 'to want': ...
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Answered by Xita R. • Spanish tutor
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