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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Mathematics
Chapter
Mathematical Reasoning

NTA Abhyas 2020 · Mathematics · Mathematical Reasoning

If p, q ~and& r are 3 statements, then the truth value of ((~ p ∨...

If p,qp, q~and& rr are 33 statements, then the truth value of \left(\left(~ p ∨ q\right) ∧ ~ r\right) ⇒ p$ is

Options

  1. ATrue if truth values of p,q,rp, q, r are T,F,TT, F, T respectively
  2. BFalse if truth values of p,q,rp, q, r are T,F,TT, F, T respectively
  3. CFalse if truth values of p,q,rp, q, r are T,F,FT, F, F respectively
  4. DFalse if truth values of p,q,rp, q, r are T,T,TT, T, T respectively

Correct answer

A. True if truth values of p,q,rp, q, r are T,F,TT, F, T respectively

Step-by-step solution

{pqrprp∨q(p∨q)∧r(p∨q)∧r⇒pTFTFFFFTTFFFTFFTTTTFFTFT\begin{cases}p & q & r & p & r & p ∨ q & \left( p ∨ q\right) ∧ r & \left( p ∨ q\right) ∧ r ⇒ p \\ T & F & T & F & F & F & F & T \\ T & F & F & F & T & F & F & T \\ T & T & T & F & F & T & F & T\end{cases}
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