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標題:
Complex no.
發問:
By putting z=z+iy, find the complex number z which satisfies the equation z+2z* = 15/2-i where z* denotes the complex conjugate of z. Thank you...
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最佳解答:
z=x+iy z*=x-iy z+2z* = 15/2-i LHS=3x-iy RHS=15(2+i)/[(2-i)(2+i)]=15(2+i)/(4+1)=6+3i 3x=6, x=2 -y=3, y=-3 z=2-3i
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