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Posted by on Friday, May 2, 2008 at 11:33am.

If x=1/7+4√3 and y=1/7-4√3, then find the value of (i)x2+y2 (ii)x3+y3

  • math - , Friday, May 2, 2008 at 11:36am

    Well x^2=1/49 + 48+8/7 *sqrt3
    and y^2=1/49 - 48+8/7 *sqrt3

    check those. Then add them.

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