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The negation of ~ svv(~ r^^s) is equival...

The negation of `~ svv(~ r^^s)` is equivalent to :

A

` s vv ( r vv ~ s)`

B

` s ^^ r`

C

` s vv ~ r`

D

`s ^^ ( r ^^ ~ s)`

Text Solution

Verified by Experts

The correct Answer is:
B
` ~ { s vv ( ~ r ^^ s}`
` = ~ ( ~ s) ^^ ~ ( ~ r ^^ s)`
` s ^^ ( r vv ~ s)`
` ( s ^^ r) vv ( s ^^ ~ s) `
` ( s ^^ r) v phi `
` = s ^^ r`
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OBJECTIVE RD SHARMA-MATHEMATICAL REASONING -Section I - Solved Mcqs
  1. The contrapositive of p to ( ~ q to ~ r) is

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  2. The contrapositive of the statement "if 2^(2) =5 then I get first cla...

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  3. If x = 5 nad y = -2 , then x -2y =9, the contrapositive of this propos...

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  4. The diagonals of a rhombus are perpendicular. The contrapositive of th...

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  5. Which of the following is wrong?

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  6. The symbolic form of logic of the circuit given below is : (RDSMATH...

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  7. Which of the following statements is a tautology ?

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

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  9. Let S be non-empty subset of R. consider the following statement: P:...

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  10. Consider the following statements P: Suman is brilliant Q: Suman i...

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  11. The only statement among the following i.e. a tautology is

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  12. Let p and q be two statements. Amongst the following , the statement t...

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

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  14. The negation of ~ svv(~ r^^s) is equivalent to :

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  15. The Bolean Expression ( p ^^ ~ q) vv q vv ( ~ p ^^ q vv ( ~ p ^^ q) ...

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  16. Consider the following statements. p : if 7 is an odd number , then ...

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  17. The negation of A to (A vv ~ B) is

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  18. The following statement (p to q) to [(~p to q) to q] is

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  19. Which of the following is a tautology ?

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  20. The proposition ~p vv( p ^^ ~ q) is equivalent to

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