1.

The negation of the statement “Plants take in CO2 and give out O2 ” is(a) Plants do not take in CO2 and do not given out O2(b) Plants do not take in CO2 or do not give out O2(c) Plants take is CO2 and do not give out O2(d) Plants take in CO2 or do not give out O2

Answer»

(b) Now, p: Plants take in CO2 and give out O2 .

Let q: Plants take in CO2 .

r: Plants give out O2 .

~q: Plants do not take in CO2 .

~r: Plants do not give out O2 .

~(q ∧ r): Plants do not take in CO2 or do not give out O2 .



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