JEE Main 8 Jan 2020 Shift 2 Solved Paper

Section: Mathematics

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Question : 57 of 75

Marks: +1, -0

Which of the following statements is a tautology?

[8 Jan 2020 Shift 2]

~(P‌⋁~q)→p‌⋁q
~(p‌⋀~q)→p‌⋁q
~(p‌⋁~q)→p‌⋀q
p‌⋁(~q)→P‌⋀q

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