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Integrate tan(x)^2 with respect to x

sin(x)2 + cos(x)2 = 1 divide by cos(x)2 tan(x)2 + 1 = sec(x)2 therefore tan(x)2 = sec(x)2 - 1 integral of sec(x)2 - 1 rwt x = tan(x) - x + C therefore the integral of tan(x)2 rwt x = tan(x) - x + C
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Answered by Osman O. • Maths tutor
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Where and why do we plot points on cumulative frequency graphs?

At the end of each group. Say you have a table of groups and frequencies corresponding to those groups, for example for x we have group 0<x<=5 with frequency 6 and group 5<x<=15 with frequency 10...
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Answered by Osman O. • Maths tutor
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"In Richard III, Shakespeare demonstrates that women lack agency." By exploring the role and dramatic presentation of women in Richard III, evaluate this view.

Although the women in Richard III are seen as victims, their theatrical roles within the play supplies them with agency. As a play that derives partial inspiration from the tradition of morality plays, the w...
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Answered by Emma W. • English tutor
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How to differentiate a bracket raised to a power i.e. chain rule

Lets say the equation to be differentiated takes the following format y = (ax 2 +bx+c) n , to find dy/dx: (1) Make u equal the contents of the bracket, u=ax 2 +bx+c. (2) Substitute the contents of the bracke...
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Answered by David F. • Maths tutor
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Are the supernatural elements in Marlowe's Doctor Faustus supposed to be frightening or ridiculous?

The supernatural elements in Christopher Marlowe’s Doctor Faustus are both genuinely frightening and faintly ridiculous. The conjuring of devils in Act One for instance, in which Faustus’ evocations of “surg...
LR
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