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MHT CET · Maths · Mathematical Reasoning

If \(\mathrm{p}\) and \(\mathrm{q}\) are true statements and \(\mathrm{r}\) and \(s\) are false statements, then the truth values of the statement patterns \((p \wedge q) \vee r\) and \((\mathrm{p} \vee \mathrm{s}) \leftrightarrow(\mathrm{q} \wedge \mathrm{r})\) are respectively

  1. A \(\mathrm{F}, \mathrm{T}\)
  2. B \(\mathrm{T}, \mathrm{T}\)
  3. C \(\mathrm{F}, \mathrm{F}\)
  4. D \(\mathrm{T}, \mathrm{F}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\mathrm{T}, \mathrm{F}\)

Step-by-step Solution

Detailed explanation

\(\begin{array}{ll}(\mathrm{p} \wedge \mathrm{q}) \vee \mathrm{r} & (\mathrm{p} \vee \mathrm{s}) \leftrightarrow(\mathrm{q} \wedge \mathrm{r}) \\ \equiv(T \wedge \mathrm{T}) \vee \mathrm{F} & \equiv(\mathrm{T} \vee \mathrm{F}) \leftrightarrow(\mathrm{T} \wedge \mathrm{F}) \\ \equiv \mathrm{T} \vee \mathrm{F} & \equiv \mathrm{T} \leftrightarrow \mathrm{F} \\ \equiv \mathrm{T} & \equiv \mathrm{F}\end{array}\)