If the first term of an A.P. is a and nth term is b, then its common d – McqOptions

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1.	If the first term of an A.P. is a and nth term is b, then its common difference is
A.	$\frac{{b - a}}{{n + 1}}$$
B.	$\frac{{b - a}}{{n - 1}}$$
C.	$\frac{{b - a}}{n}$$
D.	$\frac{{b + a}}{{n - 1}}$$
Answer» C. $\frac{{b - a}}{n}$$

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