Determine the solution sets in C of the following equations. Justify. cosh z = -1

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A: Note: As per our Guidelines we can solve first three subparts . please repost remaining parts.

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A: Firstly rearrange equations ,we get  2x-λx-2y+z=0⇒(2-λ)x-2y+z=0 2x-3y-λy+2z=0⇒2x+(-3-λ)y+2z=0…

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