A) \[-2x\,\,(1-{{x}^{2}})\,\,\sin \,\,{{(1-{{x}^{2}})}^{2}}\]
B) \[-4x\,\,(1-{{x}^{2}})\,\,\sin \,\,{{(1-{{x}^{2}})}^{2}}\]
C) \[4x\,\,(1-{{x}^{2}})\,\,\sin \,\,{{(1-{{x}^{2}})}^{2}}\]
D) \[-2\,\,(1-{{x}^{2}})\,\,\sin \,\,{{(1-{{x}^{2}})}^{2}}\]
E) None of these
Correct Answer: C
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