Question
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Answer
La integral
se resuelve reemplazando
, lo que lleva a la integral
. La solución final es
.
Solution
- Sea
. Entonces, tenemos que:
Al sustituir en la integral, se tiene:
- Ahora, consideramos la integral estándar:
La integral estándar es:
- Sustituyendo de nuevo
, obtenemos la solución final:
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Bonus Knowledge
To tackle the integral
, let’s first consider a substitution that simplifies the expression under the square root. Setting
leads us to
, or
. The integral then transforms into:
This result takes us to a well-known integral, which can be evaluated using trigonometric or geometric interpretations. Specifically,
can be solved using the sine substitution or recognized as an area, yielding:
Substituting back
, we find the final result: