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JEE Main 202324 JanuaryEvening Shift
Exam
JEE Main
Year
2023
Date
24 January
Shift
Evening Shift
Subject
Mathematics
Chapter
Mathematical Reasoning

JEE Main 2023 · 24 January · Evening Shift · Mathematics · Mathematical Reasoning

Let p and q be two statements. Then ~ ( p ∧ ( p → ~ q ) is...

Let pp and qq be two statements. Then  (p∧(p→ q)~ ( p ∧ ( p \to ~ q ) is equivalent to

Options

  1. Ap∨(p∧( q))p ∨ ( p ∧ ( ~ q ) )
  2. Bp∨(( p)∧q)p ∨ ( ( ~ p ) ∧ q )
  3. C( p)∨q\left(~ p\right) ∨ q
  4. Dp∨(p∧q)p ∨ ( p ∧ q )

Correct answer

C. ( p)∨q\left(~ p\right) ∨ q

Step-by-step solution

Given,

 (p∧(p→ q)~ ( p ∧ ( p \to ~ q )

≡ p∨ ( p∨ q)≡ ~ p ∨ ~ ( ~ p ∨ ~ q ) \left\{\text{as}A \to B ≡ ~ A ∨ B\right\}</p><p></p><p>≡ ~ p ∨ ( p ∧ q ){as (A∨B)≡ A∧ B}\left\{\text{as} ~ \left(A ∨ B\right) ≡ ~ A ∧ ~ B\right\}

≡( p∨p)∧( p∨q)≡ ( ~ p ∨ p ) ∧ ( ~ p ∨ q )

≡t∧( p∨q)≡ t ∧ ( ~ p ∨ q )

≡ p∨q≡ ~ p ∨ q

≡( p)∨q≡ ( ~ p ) ∨ q

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