For the G.P. If r = -3 and t6 = 1701, find a. – InterviewSolution

1.

For the G.P. If r = -3 and t6 = 1701, find a.

Answer»

Given, r = -3, t₆ = 1701

t_n = ar^n-1

\(\therefore\) t₆ = a(-3)^6-1

\(\therefore\) 1701 = a(-3)⁵

\(\therefore\) a = \(\frac{1701}{-243}\)

\(\therefore\) a = -7

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