Instructions

In the following questions, a question is followed by data in the form of two statements labelled as I and II. You must decide whether the data given in the statements are sufficient to answer the questions.

Question 8

$$Z_{1}$$ and $$Z_{2}$$ are complex numbers. Is $$Z_{1} + Z_{2}$$ real?
I) The real and imaginary parts of $$Z_{1}$$ and $$Z_{2}$$ are integers
II) $$Z_{1}$$ is conjugate of $$Z_{2}$$

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TS ICET 19th August 2021 Shift-2

$$Z_{1}$$ and $$Z_{2}$$ are complex numbers. Is $$Z_{1} + Z_{2}$$ real?I) The real and imaginary parts of $$Z_{1}$$ and $$Z_{2}$$ are integersII) $$Z_{1}$$ is conjugate of $$Z_{2}$$

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$$Z_{1}$$ and $$Z_{2}$$ are complex numbers. Is $$Z_{1} + Z_{2}$$ real?
I) The real and imaginary parts of $$Z_{1}$$ and $$Z_{2}$$ are integers
II) $$Z_{1}$$ is conjugate of $$Z_{2}$$