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Equivalent form of " if and only if " fo...

Equivalent form of " if and only if " for the given statements p and q is

A

p if and only if q

B

q if and only if p

C

p is necessary and sufficent condition for q and vice versa

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))
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  13. For the given statements identify the sufficient condition p·: If d...

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  14. Negation of the given statement p is P : There exists a rational num...

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  16. Contrapositive of given statement p is, where p : If slope of a stra...

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  19. p : xy =yx , is true for every real number x and y q : There exists ...

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