Approximating Square Roots

The video tutorial explains how to calculate square roots, focusing on the difference between rational and irrational numbers. It demonstrates how to estimate the value of irrational square roots, such as the square root of 5, by comparing them to perfect square numbers. The tutorial provides a practical example and concludes with a review of the estimation method's accuracy.

What is the square root of 9 and why is it considered easy to calculate?

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Explain what an irrational number is and provide an example from the lesson.

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What does it mean for the square root of 5 to lie between the square root of 4 and the square root of 9?

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How can we estimate the value of the square root of 5 using perfect squares?

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Describe the process of verifying the estimated value of the square root of 5 using a calculator.

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