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CBSE Class 9 Answered

PL'Z ANSWER THIS
Asked by Shivangi_2 | 06 Jul, 2008, 09:47: AM
answered-by-expert Expert Answer

x3 _ 1/x3 = (x - 1/x)3 + 3 x * 1/x (x -1/x)

= (3 + 2 sqrt2)3 + 3(3+2 sqrt2)                         sqrt 2 = 1.732

= (6.464)3 + 3 (6.464)

= 270.1 + 19.4

= 289.5

Answered by | 06 Jul, 2008, 03:16: PM

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