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CBSE Class 11-science Answered

sets
Asked by sjrocks15 | 01 May, 2010, 08:24: PM
Expert Answer

Given set is {x:x2+x+1=0,x is an element of COMPLEX NUMBERS}

we need complex number/s which satisfies the equation x2+x+1 =0  so 
x is the root of equation i.e x =(-1  3 i ) / 2

Answered by | 04 May, 2010, 04:10: PM
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