When does the value of the statement ` (p ^^ r) harr ( r ^^ q) ` become false ?

If the statements (p^^~r) to (qvvr) , q and r are all false, then p

If the statements (p^^~r) to (qvvr) , q and r are all false, then p

If the statements (p^^~r) to (qvvr) , q and r are all false, then p

If the statements (p^^~r) to (qvvr) , q and r are all false, then p

If the truth value of the statement p to (~q vee r) is false (F), then the truth values of the statements p,q and r are respectively

If the truth value of the statement p to (~q vee r) is false (F), then the truth values of the statements p,q and r are respectively

For any three simple statement p,q,r the statement (p ^^ q) vv (q ^^ r) is true when- (a) p and r true and p is false (b) p and r false and q is true (c) p,q,r all are false (d) q and r true p is false

If statements p.q. are both true and r,s, are both false, then indicate the truth -value of the compound statement [(~p^^q)^^~r]vv[(qtor)to(~svvr)]

If statements p.q. are both true and r,s, are both false, then indicate the truth -value of the compound statement ~[(p^^r)]vv(~qvvs)