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Identify the quantifiers in the followi...

Identify the quantifiers in the following statements.
(i) There exists a triangle which is not equilateral.
(ii) For all real numbers x and y , xy = yx.
(iii) There exists a real number which is not a rational number .
(iv) For every natural number which x,x + 1 is also a natural number.
(v) For all real number x with `x gt 3 , x^(2)` is greater than 9.
(vi) There exist a traingle which is not an isosceles traingle.
(vii) For all negative `x,x^(3)` is also a nagative integers.
(viii) There exists a statements in above statements which is not true.
(ix) There exists an even prime number other thab 2.
(x) There exists a real number x such that `x^(2) + 1=0`

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The correct Answer is:
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Quantifier area the phrases like 'There exist ' and For every , 'For every' ,'For all' etc.
(i) There exists
(ii) For all
(iii) There exists
(iv) For every
(v) For all
(vi) There exists
(vii) For all
(viii) There exists
(ix) There exists
(x) There exists.
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NCERT EXEMPLAR-MATHEMATICAL REASONING -OBJECTIVE TYPE QUESTIONS
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  2. Which of the following is a statement ?

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  3. Which of the following is not a statement.

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  4. The connective in the statement 2 + 7 gt 9 or 2+ 7 lt 9 is

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  5. The connective in the statement ''Earth revolves round the Sun and Mo...

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  6. The negative of the statement ''A circle is an ellispe'' is

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  7. The negative of the statement ''7 is greater than 8'' is

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  8. The negation of the statement ''72 is divisble by 2 and 3'' is

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  10. The negative of the statement ''Rajesh or Rajni lived in Bengaluru'' ...

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  11. The negation of the statement ''101 is not mulitple of 3'' is

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  12. The contrapositive of the statement ''If 7 is greater than 5, then ...

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  13. The converse of the statement ''If x gt y, then x + a gt y + a'' is

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  14. The converse of the statement ''If sum is not shining, then sky is ...

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  15. The contrapositive of the statement ''if p, then q '', is

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  16. The statement ''<b>If x^(2) is not even, then x is not even</b>'' is ...

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  17. The contrapositive of statement <b><b>'If Chandigarh is capital of P...

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  18. Which of the following is the conditional p to q?

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  19. The negative of the statement ''The product of 3 and 4 is 9'' is

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  20. Which of the following is not a negative of ''A nature number is ...

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  21. Which of the following statement is a conjunction ?

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