1. Given: Which expression results in a rational number? (1) (3) L + M N + P (2) (4) M + N P + L Is this (Rational)(Rational) closed? Is this (Irrational)(Irrational) closed? MULTIPLY --- (Rational)(Irrational) Is this closed? Is this closed? DIVIDE --- 2. Determine if the product of and is rational or irrational. Explain your answer.
1. Given: Which expression results in a rational number? (1) L + M (3) N + P (2) M + N (4) P + L MULTIPLY (Rational)(Rational) Is this closed? (Irrational)(Irrational) Is this closed? (Rational)(Irrational) --- DIVIDE Is this closed? Is this closed? --- 2. Determine if the product of and is rational or irrational. Explain your answer.
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