dnscote dnscote

01-02-2017
Mathematics

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Use the expansion of (4+x)3 to find the exact value of (4.02)3

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Xander4D Xander4D

01-02-2017

(4+x)3 = 4 ×3 + x×3
If x = 0.02 then (4+.02)3 = 4×3 + .02×3
= 12 + .06 = 12.06

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