Are plural nouns the same as plural nouns

dissimilarity.
Plural noun, noun itself is plural, such as people
Plural noun, plural noun, such as cats, dogs, pens

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1. If the complex Z satisfies f (1-z) = 2z-i, find the square root of (24-7i) f (1-I)
2. (1-ni)(1+i)=(n+1)+(1-n)i This is an analysis of the answer, but I don't know how this formula changes, how it changes from left to right, and what rules are used
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4. A simple plural problem 1. Solve the equation: Z ^ 2 = Z (also called Z's conjugate complex number) 2. Or plural I + 2I ^ 2 + 3I ^ 3 +50i^50=? I can give you points,
5. 1. It is known that the complex numbers Z1 and Z2 satisfy 10z1 ^ 2 + 5z2 ^ 2 = 2z1z2, and Z1 + 2z2 are pure imaginary numbers. It is proved that 3z1-z2 are real numbers 2. The point corresponding to the complex Z 1 moves on the circle Z (the module of Z) which is equal to 1 in the complex plane. Find the locus of the point Z corresponding to the complex z = 1 + Z 1I
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7. Given the complex number Z = 1-I, then Z & sup2; - 2Z / Z-1 equals ()
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