Maharashtra State BoardSSC (English Medium) 8th Standard
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Expand ( 1 − 1 a ) 3 - Mathematics

Sum

Expand

`(1 - 1/a)^3`

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Solution

`(1 - 1/a)^3`

= `(1)^3 - (1/a)^3 - 3 xx (1)^2 xx 1/a + 3 xx 1 xx (1/a)^2`

= `1 - 1/a^3 - 3/a + 3/a^2`

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APPEARS IN

Balbharati Mathematics 8th Standard Maharashtra State Board
Chapter 5 Expansion formulae
Practice Set 5.3 | Q 1.7 | Page 27
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