exam Maths Puzzle Numerical Ability



i need help in this equation i guess 2xsqrd-5x+3=0

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exam Other Question

a)Given z = x + iy , describe the solution set of
|z +1+ i|² = 2 [Re(z) + Im(z)] + 4


b)Obtain all the values of z if
Z= ( 1 )¼ and Z= ( 1 )½
1-i
Given magnitude and direction of vector, resolve it into its x and y components (7, -60o)