Use appropriate substitution and than a trigonometric substitution and evaluate the integral. My attempt How do I proceed from here? I think I have to change the limits of integration in terms of instead of .
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Substitute ln(y) = t. 1/y*dy = dt. Substitute the limits of y and find the limit of t.
Originally Posted by temaire Use appropriate substitution and than a trigonometric substitution and evaluate the integral. My attempt How do I proceed from here? I think I have to change the limits of integration in terms of instead of . Dear temaire, I think you have substituted wrong. Substitute, Also, you have to change the limits... When, When, Then your integration would be, Can you do it form here???
Originally Posted by sa-ri-ga-ma Substitute ln(y) = t. 1/y*dy = dt. Substitute the limits of y and find the limit of t. Shouldn't I use to find the limits, by substituting 1 and e into y to get the two new limits in terms of
Originally Posted by Sudharaka Dear temaire, I think you have substituted wrong. Substitute, Also, you have to change the limits... When, When, Then your integration would be, Can you do it form here??? But if , isn't ? Therefore,
Originally Posted by temaire But if , isn't ? Therefore, Dear temaire, You have to use the substitution you use to find the limits. I think you got it confused since your differentiation was wrong. You cannot obtain . Please recheck how you have differentiated.
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