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The negation of the statement ''Plants...

The negation of the statement ''Plants take in `CO_(2)` and given out `O_(2)` and give out `O_(2)`'' is

A

Plants do not take in `CO_(2)` and do not give out `O_(2)`

B

Plants do not take in `CO_(2)` or do not give out `O_(2)`

C

Plants take in `CO_(2)` and do not give out `O_(2)`

D

Plants take in `CO_(2)` or do not give out `O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Let p = Plants take `CO_(2)`
q = Plants give out `O_(2)`
Then, given statement is `p ^^ q`
Its negation is `~(p ^^ q)= ~ p vv ~q`
i.e., plants do not take `CO_(2)` or do not given out `O_(2)`.
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  2. The negation of (~p ^^ q) vv (p ^^ ~ q) is

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  3. If p : Samir is tall, q : Samir is intelligent, then ~p vv q means

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  4. Which among the following is equivalent to r harr s ?

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  5. Which of the following statements is a tautology?

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  6. Which of the following is True?

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  7. If p, q and r are any three logical statements, then which one of the ...

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  8. Among the following statements, which is a tautology ?

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  9. Which of the following is not always true ?

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  10. Converse of the statement ''If a number x is even, then x^(2) is even'...

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  11. If p to (~ p vvq) is false, the truth values of p and q are , respecti...

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  12. The truth values of p,q and r for which (p ^^ q)vv(~r) has truth value...

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  13. p vv ~(p ^^ q) is a

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  14. The false statement among the following is

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  15. Which of the following is true for any two statements p and q ?

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  16. The proposition (p to ~p) ^^ (~p to p) is a

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  17. For integers m and n, both greater than 1, consider the following thre...

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  18. The statement ~(p harr ~q) is

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  19. ~[(~p)^^q] is logocally equivalent to

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  20. The statement p to(q to p) is equivalent to

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