Chapter-wise Solutions

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This blog contains solutions to unsolved problems on the book. Some questions have complete solutions and explanations and some easier questions have hints to solve the problem. I assume that you've gone through the worked out problems and theory given in the book first. Feel free to leave a comment if you have any doubt or if you found a problem not done right.
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Friday 26 August 2016

Answer to question 4.1.20

This is a simple question. We must first make the coefficient of x^2 to 1 and then integrate using the standard formula :


So, Let us first take 10 common from the denominator to make the coefficient of x as 1 :

Now, let's use the standard formula to integrate. We have u=x and a=squareroot(7/10). Putting these values in the standard formula given above will yield this :
After further simplification by dividing root(10) by 10 and taking common denominator inside log, we obtain the answer as :


Please note that I use log instead of ln so in this blog, log means natural log.

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