I need help with this problem, I'm very confused Prove that for all complex numbers z and w: 1. zw* + z*w is always real 2. zw* - z*w is purely imaginary or zero.
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Originally Posted by erickvm123 I need help with this problem, I'm very confused Prove that for all complex numbers z and w: 1. zw* + z*w is always real 2. zw* - z*w is purely imaginary or zero. if you mean by z* the conjugate here is the answer let and this is always real and this maybe 0 if yu=vx or imaginary if yu dose not equal vx and it is known that Re is the real part of z Im is the imaginary part of z
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