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Poobah

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  1. Poobah
    I have no clue how to do this one... let a= -1+i, b=-2-i, solve for z. b*=complex conjugate of b z-b*=Im(a^2/(2b+i))
  2. Poobah
    No - written as....... 2csc-1=0 Merged post follows: Consecutive posts mergedas i thought - unsolveable - prob just a typo - but ty
  3. Poobah
    could this be a typo? in a question sheet? 2cosecx-1=0???
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