Problem

$y=\sqrt{x} e^{x}$, then $y^{(2)}=\frac{e^{x}}{\sqrt{x^{3}}}\left(x^{2}+x-\frac{1}{4}\right)$
A. True
B. False

Answer

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Answer

Comparing this with the given expression, we see that they are not equal. Therefore, the statement is \(\boxed{\text{False}}\).

Steps

Step 1 :Given the function \(y = \sqrt{x} e^{x}\), we need to find its second derivative \(y^{(2)}\) and check if it matches the given expression \(\frac{e^{x}}{\sqrt{x^{3}}}(x^{2}+x-\frac{1}{4})\).

Step 2 :First, find the first derivative \(y'\):

Step 3 :\(y' = \frac{d}{dx}(\sqrt{x} e^{x}) = \frac{1}{2\sqrt{x}} e^{x} + \sqrt{x} e^{x}\)

Step 4 :Next, find the second derivative \(y^{(2)}\):

Step 5 :\(y^{(2)} = \frac{d}{dx}(\frac{1}{2\sqrt{x}} e^{x} + \sqrt{x} e^{x}) = \frac{1}{4x\sqrt{x}} e^{x} - \frac{1}{2\sqrt{x}} e^{x} + e^{x}\sqrt{x}\)

Step 6 :Simplify the second derivative:

Step 7 :\(y^{(2)} = \frac{e^{x}}{\sqrt{x^{3}}}(x^{2} - \frac{1}{4})\)

Step 8 :Comparing this with the given expression, we see that they are not equal. Therefore, the statement is \(\boxed{\text{False}}\).

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