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Negation of the statement "There does not exist a parallelogram whose diagonals are of equal length" is

A

It is not the case that there does not exist a parallelogrcJm whose diagonals are of equal length

B

It is false that there does not exist a parallelogram whose diagonals are -of equal length

C

There exists a parallelogram whose diagonals are of equal length

D

All of these

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-MATHEMATICAL REASONING-Assignment (SECTION-A) (Objective type Questions (Only one answer))
  1. Which of the following is not a statement

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  2. Negation of statement "New york is in America and Mumbai is in India...

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  3. Negation of the statement "There does not exist a parallelogram whose ...

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  4. Negation of statement "Everyone in China knows Martial Art": can be in...

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  5. Which of the following is true? (i) If p is a statement then ~p is...

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  6. Which of the following option can be used as basic connectives

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  7. The compound statement with. "And" is true when

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  8. The compound statement with "And" is false If

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  9. In which of the following statements · 'And" is not used as basic con...

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  10. In which of the following statement "And" is not used as basic connect...

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  11. Which of the following compound statements is/are true? p : sqrt7 ...

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  12. Which of the following compound statements are false? p : 17 is odd ...

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  13. A compound statement with "OR" Is true when

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  14. A compound statement with "OR" is false when

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  15. Which of the following compound statements is/are true? p : All fra...

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  16. p: x = 5 or x = 1 is the root of equation (x - 5)^2 = 0, statement p i...

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  17. Which of the following statements is/are false? p : 137 is an intege...

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  18. Which of the following compound statement contains inclusive OR p : ...

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  19. Which of the following compound statement contains exclusive OR' p :...

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  20. p : For every integer x, x^2 is positive integer, (x ne 0) statement...

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