int_0^1e^(sqrtx)/sqrtxdx = কত?
RUUnit-CSet-3উচ্চতর গণিত প্রথম পত্রযোগজীকরণযোগজ নির্ণয়ের সূত্র ও ধর্ম (Topic Practice)RU - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
C.
2(e-1)
Explanation:

Another Explanation (5):
Solution:
Let \(I = \int_{0}^{1} \frac{e^{\sqrt{x}}}{\sqrt{x}} dx\)
Substitute \(u = \sqrt{x}\). Then \(x = u^2\) and \(dx = 2u du\).
When \(x = 0\), \(u = \sqrt{0} = 0\).
When \(x = 1\), \(u = \sqrt{1} = 1\).
Therefore,
\(I = \int_{0}^{1} \frac{e^{u}}{u} (2u) du\)
\(I = 2 \int_{0}^{1} e^{u} du\)
\(I = 2 [e^{u}]_{0}^{1}\)
\(I = 2 (e^{1} - e^{0})\)
\(I = 2 (e - 1)\)
Therefore, \(\int_{0}^{1} \frac{e^{\sqrt{x}}}{\sqrt{x}} dx = 2(e-1)\).