If \( \mathrm{a}, \mathrm{b}, \mathrm{c}, \mathrm{d}, \mathrm{e}, \mathrm{f} \) are in A.P., the... VIDEO
If \( \mathrm{a}, \mathrm{b}, \mathrm{c}, \mathrm{d}, \mathrm{e}, \mathrm{f} \) are in A.P., then \( (\mathrm{e}-\mathrm{c}) \) is equal to
a. \( 2(a-e) \)
b. \( 2(\mathrm{~d}-\mathrm{c}) \)
c. \( 2(\mathrm{f}-\mathrm{d}) \)
d. \( \frac{\mathrm{f}-\mathrm{b}}{2} \)
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