Given the statement "If $x^2 = 4$, then $x = 2$", we need to find the converse, inverse, and contrapositive statements. We must also determine the truth or falsity of the original statement and the three derived statements.

Discrete MathematicsLogicConditional StatementsConverseInverseContrapositiveTruth Values
2025/6/7

1. Problem Description

Given the statement "If x2=4x^2 = 4, then x=2x = 2", we need to find the converse, inverse, and contrapositive statements. We must also determine the truth or falsity of the original statement and the three derived statements.

2. Solution Steps

Original Statement: If x2=4x^2 = 4, then x=2x = 2.
If x2=4x^2 = 4, then xx can be either 2 or -

2. $x^2 = 4 \implies x = \pm 2$.

Therefore, the original statement is false.
Converse: If x=2x = 2, then x2=4x^2 = 4.
If x=2x = 2, then x2=22=4x^2 = 2^2 = 4.
Therefore, the converse statement is true.
Inverse: If x24x^2 \ne 4, then x2x \ne 2.
If x24x^2 \ne 4, then xx can be any real number except 2 and -

2. This implies $x$ can be something like 1, so $x\ne 2$.

Therefore, the inverse statement is false.
Contrapositive: If x2x \ne 2, then x24x^2 \ne 4.
If x2x \ne 2, then xx can take infinitely many values. If x=2x=-2, then x2x \ne 2 but x2=(2)2=4x^2=(-2)^2 = 4. Hence x2x^2 can equal

4. Therefore, the contrapositive statement is false.

3. Final Answer

Original statement: False
Converse: True
Inverse: False
Contrapositive: False

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