1.

The common difference of the A.P. is\(\frac{1}{2q}, \frac{1-2q}{2q}, \frac{1-4q}{2q},...., is\)A. –1 B. 1 C. q D. 2q

Answer»

 A.P. is \(\frac{1}{2q}, \frac{1-2q}{2q}, \frac{1-4q}{2q},...., \)

d= a– a1

d = \(\frac{1-2q}{2q}- \frac{1}{2q}\)

d = \(\frac{1-2q + 1}{2q}\)

d = -1



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