\(\frac{/ - /_o}{/ \Delta t}\)
\(\frac{/ - /_o}{/_o \Delta t}\)
/o(1 + \(\Delta\) t)
\(\frac{/ - /_o}{/(1 + \Delta t)}\)
Correct answer is B
\(\frac{L - L_o}{L_o \Delta t}\)
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