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If (1+2i) is one of the roots of the equation x⁴-3x³+8x²-7x+5=0 and z1,z2,z3 are other three roots then Re(z1+z2+z3) = |
| Answer» If (1+2i) is one of the roots of the equation x⁴-3x³+8x²-7x+5=0 and z1,z2,z3 are other three roots then Re(z1+z2+z3) = | |