1.

If \[x={{t}^{2}}\], \[y={{t}^{3}}\], then \[\frac{{{d}^{2}}y}{d{{x}^{2}}}\]     =                             [EAMCET 1994]

A.            \[\frac{3}{2}\]
B.            \[\frac{3}{(4t)}\]
C.            \[\frac{3}{2(t)}\]
D.            \[\frac{3t}{2}\]
Answer» C.            \[\frac{3}{2(t)}\]


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