Let . (a) Evaluate the integral by making a change of variables using hyperbolic functions. Hence evaluate (b) Express in terms of exponentials. Solve for and hence express as .
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Originally Posted by chav86 Let . (a) Evaluate the integral by making a change of variables using hyperbolic functions. Hence evaluate (b) Express in terms of exponentials. Solve for and hence express as . Please show what you've done so far and where you get stuck.
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