1.

Which of the following relation is correct?

A. (dA)/A = (M + 1)*(dV/V)
B. (dA)/A = (M – 1)*(dV/V)
C. (dA)/A = (M<sup>2</sup> + 1)*(dV/V)
D. (dA)/A = (M<sup>2</sup> – 1)*(dV/V)
Answer» E.


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