If y = t(x) be a differentiable function x R, then which of the fo – McqOptions

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1.	If y = t(x) be a differentiable function x R, then which of the following is always true?
A.	d<sup>2</sup>y/dx<sup>2</sup> (dy/dx)<sup>3</sup> = 0
B.	d<sup>2</sup>y/dx<sup>2</sup> + (dy/dx)<sup>3</sup> d<sup>2</sup>x/dy<sup>2</sup> = 0
C.	d<sup>2</sup>y/dx<sup>2</sup> (dx/dy)<sup>3</sup> = 0
D.	d<sup>2</sup>y/dx<sup>2</sup> + (dy/dx)<sup>3</sup> = 0
Answer» C. d<sup>2</sup>y/dx<sup>2</sup> (dx/dy)<sup>3</sup> = 0

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