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JEE Main 20188 April
Exam
JEE Main
Year
2018
Date
8 April
Subject
Mathematics
Chapter
Mathematical Reasoning

JEE Main 2018 · 8 April · Mathematics · Mathematical Reasoning

The Boolean expression ~ (p ∨ q) ∨ (~ p ∧ q) is equivalent to

The Boolean expression  ~\left(p ∨ q\right) ∨ ( p∧q)\left(~ p ∧ q\right) is equivalent toThe Boolean expression ~ (p ∨ q) ∨ (~ p ∧ q) is equivalent toThe Boolean expression ~ (p ∨ q) ∨ (~ p ∧ q) is equivalent toThe Boolean expression ~ (p ∨ q) ∨ (~ p ∧ q) is equivalent to

Options

  1. A q~ q
  2. B p~ p
  3. Cpp
  4. Dqq

Correct answer

B.  p~ p

Step-by-step solution

Venn diagram of  (p∨q)</p><p><imgsrc="https://cdn−question−pool.getmarks.app/pyq/jeemain/c4008fd7−f21a−4c5f−aae9−c4dce434d8b4−image.png"style="width:240px;height:150px;"/><br/>Venndiagram~ \left(p ∨ q\right)</p><p><img src="https://cdn-question-pool.Quantrex.app/pyq/jee_main/c4008fd7-f21a-4c5f-aae9-c4dce434d8b4-image.png" style="width: 240px; height: 150px;" /><br />Venn diagram of \left(~ p ∧ q\right)
The Boolean expression ~ (p ∨ q) ∨ (~ p ∧ q) is equivalent to

Venn diagram of (p∨q)∨( p∧q)<br/><imgsrc="https://cdn−question−pool.getmarks.app/pyq/jeemain/3a8468c1−3350−4438−9776−8c62188ed1b8−image.png"style="width:250px;height:157px;"/><br/>~ \left(p ∨ q\right) ∨ \left(~ p ∧ q\right)<br /><img src="https://cdn-question-pool.Quantrex.app/pyq/jee_main/3a8468c1-3350-4438-9776-8c62188ed1b8-image.png" style="width: 250px; height: 157px;" /><br />~ \left(p ∨ q\right) = \left(~ p ∧ ~ q\right) ∨ \left(~ p ∧ q\right)
= p∧( q∨q)= ~ p ∧ \left(~ q ∨ q\right)
= p∧T= p= ~ p ∧ T = ~ p

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