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For the G.P., if a = 7243,r=13, find t3. - Mathematics and Statistics

Sum

For the G.P., if a = `7/243, "r" = 1/3`, find t3.

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Solution

Given, a = `7/243, "r" = 1/3`

tn = arn–1

∴ t3 = `7/243 xx (1/3)^(3 - 1)`

= `7/243 xx (1/3)^2`

= `7/243 xx 1/9`

= `7/2187`.

Concept: Sequence and Series - Geometric Progression (G.P.)
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APPEARS IN

Balbharati Mathematics and Statistics 1 (Commerce) 11th Standard Maharashtra State Board
Chapter 4 Sequences and Series
Exercise 4.1 | Q 2. (ii) | Page 50
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