Question No. 12

If I=S,

22 +5z+6

dz then

2-3

z = 2

Answer

A.

I= 0

B.

I #0

# Question No. 12

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Answer:substitute the expression for z2 into the second equation to get … 6 . Since we need to find the cube of the number z we can use the De … Then Arg(z1z2) = Arg(1) = 0, whereas Arg(z1) + Arg(z2) = .