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For any two complex numbers z1 and z2 with |z1| not equal to |z2|,|i21/2z1 +31/2z2|2 +|31/2z1 +i21/2z2|2 is
a. =5(|z2|2+|z2|2|
b=2|z1|2+3|z2|2
c. 0
d. None
Dear Vaibhav
|i21/2z1 +31/2z2|2 +|31/2z1 +i21/2z2|2
=(i21/2z1 +31/2z2)(-i21/2conjugate(z1) +31/2conjugate(z2)) +(31/2z1 +i21/2z2)(31/2conjugate(z1) +i21/2conjugate(z2))
=5(|z2|2+|z2|2)
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