MHT CET2016MathematicsMathematical Reasoning
Which of the following quantified statement is true?
Options
- AThe square of every real number is positive
- BThere exists a real number whose square is negative
- CThere exists a real number whose square is not positive
- DEvery real number is rational
Correct answer
C. There exists a real number whose square is not positive
Step-by-step solution
x 2 ≥ 0 for all real numbers x For x = 0 , x 2 = 0 (not positive)