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

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

Question

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

Options:

A . $$\frac{{b - a}}{{n + 1}}$$

B . $$\frac{{b - a}}{{n - 1}}$$

C . $$\frac{{b - a}}{n}$$

D . $$\frac{{b + a}}{{n - 1}}$$

Answer: Option B

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