Final Answer
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Removing the variable's exponent
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$\sqrt{r^2}=\pm \sqrt{4^2+3^2}$
Learn how to solve problems step by step online. Solve the quadratic equation r^2=4^2+3^2. Removing the variable's exponent. Cancel exponents 2 and \frac{1}{2}. Calculate the power 4^2. Calculate the power 3^2.