For any two complex numbers z1 and z2 an...

For any two complex numbers `z_1` and` z_2` and any real numbers a and b, `[abs(az_1-bz_2)]^2+[abs(bz_1+az_2)]^2 = `

A

A)`(a^2+b^2)(abs(z_1+abs(z_2)`

B

B)`(a^2+b^2)((abs(z_1))^2+(abs(z_2))^2)`

C

C)`(a^2+b^2)((abs(z_1))^2-(abs(z_2))^2`

D

D)none of these

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