Question

# If x & y are real numbers and then ' y ' cannot take the value(s) :

- -1
- 0
- 1
- 2

## The correct answer is: -1

### For that find y and where its value lies.

Complete step by step solution:

Here, we have to find the ‘y’ cannot take which value.

Firstly, x and y are real numbers,

= x

so,

y = x^{2}

x^{2} never be negative for any real value,

then we can say that y is always non-negative.

y ≥ 0,

from options, -1 is negative, then y cannot take this value.

Therefore, the correct answer is -1.

Here we have, x and y are real number and = x, we have to find that what ‘y’ cannot take the value. For that find y and where its value lies.

In this question, we have to which value y cannot give. Here ‘y’ is always non-negative, so it never given the negative value.

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