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(3)
Ask by Fleming Peterson. in China
Jan 23,2025
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Mind Expander
The integral
can be evaluated using a trigonometric substitution. By substituting
, we transform the expression into a more manageable form, leading to
which integrates easily to
. Finally, resubstituting gives us the result as
.
For the integral
, notice that it can be simplified by separating the fractions. We can express the integrand as
. The first part can be handled with a simple substitution, while the second can use a logarithmic approach, leading to an elegant solution involving the natural logarithm. Happy integrating!