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B
¯¯¯z|z|2
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C
¯¯¯z|z|
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D
¯¯¯¯¯z2|z|
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Solution
The correct option is C¯¯¯z|z|2 Let z=reiθ Let T be the multiplicative inverse of z. Then z.T=1 Or reiθ.T=1 Or T=1reiθ =e−iθr =re−iθr2 =¯z|z|2. Hence the multiplicative inverse of z is =¯z|z|2