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Help needed please-Maths Watch

    • Thread Starter


    If you could verify the answers i already have or tell me its wrong/help with any other questions that would be great

    for 3aii) i got -11+27i ii)same as part i) iii)(-11-27i)/1850 iv) 7root2/2i minus root2 over 2

    b) -0.5+-root3 over 2i
    c)i said let z+a+bi then did z+zbar and got 2a and x 0.5=a is that it? not sure how to do second one

    4a) real is cos7pi/12 im=sin7pi/12 not sure how to do 3rd part
    b) i can do
    c) i can do

    I have no idea about 5, help on this question specifically would be awesome x
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