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# If $$\Large k \neq 0$$ and $$\Large k \neq 1$$, then which of the following cannot be true?

 A) $$k^2 > k$$ B) $$k^2 < k$$ C) $$k^2 = k$$ D) Both b and c

 C) $$k^2 = k$$

Any positive or negative number $$\Large \neq$$ 0 will never have its square as zero or negative

If k = $$\Large \frac{1}{2}$$
Then $$\Large k^2$$ = $$\frac{1}{4}$$

So $$\Large k^2 < k$$
Hence $$\Large k^2 < k$$ is true.

Part of solved Number System questions and answers : >> Aptitude >> Number System

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