A) \[\frac{{{x}^{2}}}{2}+C\]
B) \[-\frac{{{x}^{2}}}{2}+C\]
C) \[x|x|+C\]
D) \[\frac{x|x|}{2}+C\]
Correct Answer: D
Solution :
Let\[\sigma =\text{5}.\text{67}\times \text{1}{{0}^{-\text{8}}}\text{W}-{{\text{m}}^{\text{2}}}{{\text{K}}^{\text{-4}}}\] \[y=5\sin \frac{\pi x}{3}\cos 40\pi t\]\[t\] \[{{(Kg)}^{1/2}}\] \[{{(Kg)}^{-1/2}}\] \[{{(Kg)}^{2}}\] \[{{(Kg)}^{-2}}\]
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