The problem consists of four true/false statements that need to be evaluated. i) The number $\pi^0$ is irrational. ii) The quadratic equation $x^2 = -4$ has no real solutions. iii) The rational expression $\frac{3x-1}{1-3x}$ when simplified is equal to $-1$. iv) $x^{5/3} = \sqrt[5]{x^3}$ for a real number $x$.

AlgebraTrue/FalseRational NumbersQuadratic EquationsRational ExpressionsExponentsSimplification
2025/4/21

1. Problem Description

The problem consists of four true/false statements that need to be evaluated.
i) The number π0\pi^0 is irrational.
ii) The quadratic equation x2=4x^2 = -4 has no real solutions.
iii) The rational expression 3x113x\frac{3x-1}{1-3x} when simplified is equal to 1-1.
iv) x5/3=x35x^{5/3} = \sqrt[5]{x^3} for a real number xx.

2. Solution Steps

i) π0=1\pi^0 = 1. Since 1 is a rational number, the statement that π0\pi^0 is irrational is false.
ii) x2=4x^2 = -4. If xx is a real number, then x2x^2 must be non-negative (x20x^2 \ge 0). Therefore, there is no real number xx such that x2=4x^2 = -4. The statement that the quadratic equation x2=4x^2 = -4 has no real solutions is true.
iii) 3x113x=3x1(3x1)\frac{3x-1}{1-3x} = \frac{3x-1}{-(3x-1)}. If 3x103x-1 \ne 0, then 3x1(3x1)=1\frac{3x-1}{-(3x-1)} = -1. The statement that the rational expression 3x113x\frac{3x-1}{1-3x} when simplified is equal to 1-1 is true (provided x13x \ne \frac{1}{3}).
iv) x5/3=x53x^{5/3} = \sqrt[3]{x^5}
x5/3=x35x^{5/3} = \sqrt[5]{x^3} is false. x5/3x^{5/3} is equal to x53\sqrt[3]{x^5}.

3. Final Answer

i) F
ii) T
iii) T
iv) F

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