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  • Here are the explanations for √3, √5, and √7:

    √3:
    *Geometric Method:*
    Imagine an equilateral triangle with side length 2 units. Draw an altitude from one vertex to the opposite side, creating two 30-60-90 right triangles.

    Using the Pythagorean theorem:

    a^2 + b^2 = c^2

    where a and b are the legs, and c is the hypotenuse.

    1^2 + (√3)^2 = 2^2
    1 + 3 = 4
    √3 = √3

    Now, imagine a hexagon with side length 1 unit. The diagonal of this hexagon is equal to √3 units.

    Using a compass and straightedge, we can construct a sequence of triangles and hexagons to approximate the value of √3.

    *Decimal Expansion:*
    We can express √3 as a decimal using the following method:

    √3 = 1 + 0.7 + 0.04 + 0.002 + ... (using the Babylonian method or other numerical methods)

    This decimal expansion converges to approximately 1.7321.

    √5:
    *Geometric Method:*
    Imagine a golden rectangle with length 2 units and width 1 unit. Draw a diagonal, creating two similar triangles.

    Using the Pythagorean theorem:

    a^2 + b^2 = c^2

    where a and b are the legs, and c is the hypotenuse.

    1^2 + 2^2 = (√5)^2
    1 + 4 = 5
    √5 = √5

    Now, imagine a decagon with side length 1 unit. The diagonal of this decagon is equal to √5 units.

    Using a compass and straightedge, we can construct a sequence of triangles and decagons to approximate the value of √5.

    *Decimal Expansion:*
    We can express √5 as a decimal using the following method:

    √5 = 2 + 0.2 + 0.01 + 0.0005 + ... (using the Babylonian method or other numerical methods)

    This decimal expansion converges to approximately 2.2361.

    √7:
    *Geometric Method:*
    Imagine a heptagon with side length 1 unit. Draw a diagonal, creating two similar triangles.

    Using the Pythagorean theorem:

    a^2 + b^2 = c^2

    where a and b are the legs, and c is the hypotenuse.

    1^2 + (√7)^2 = (√14)^2
    1 + 7 = 14
    √7 = √7

    Now, imagine a 14-gon with side length 1 unit. The diagonal of this 14-gon is equal to √7 units.

    Using a compass and straightedge, we can construct a sequence of triangles and 14-gons to approximate the value of √7.

    *Decimal Expansion:*
    We can express √7 as a decimal using the following method:

    √7 = 2 + 0.6 + 0.03 + 0.0015 + ... (using the Babylonian method or other numerical methods)

    This decimal expansion converges to approximately 2.6458.

    Here are the approximate values:

    - √3 ≈ 1.7321
    - √5 ≈ 2.2361
    - √7 ≈ 2.6458
    Here are the explanations for √3, √5, and √7: √3: *Geometric Method:* Imagine an equilateral triangle with side length 2 units. Draw an altitude from one vertex to the opposite side, creating two 30-60-90 right triangles. Using the Pythagorean theorem: a^2 + b^2 = c^2 where a and b are the legs, and c is the hypotenuse. 1^2 + (√3)^2 = 2^2 1 + 3 = 4 √3 = √3 Now, imagine a hexagon with side length 1 unit. The diagonal of this hexagon is equal to √3 units. Using a compass and straightedge, we can construct a sequence of triangles and hexagons to approximate the value of √3. *Decimal Expansion:* We can express √3 as a decimal using the following method: √3 = 1 + 0.7 + 0.04 + 0.002 + ... (using the Babylonian method or other numerical methods) This decimal expansion converges to approximately 1.7321. √5: *Geometric Method:* Imagine a golden rectangle with length 2 units and width 1 unit. Draw a diagonal, creating two similar triangles. Using the Pythagorean theorem: a^2 + b^2 = c^2 where a and b are the legs, and c is the hypotenuse. 1^2 + 2^2 = (√5)^2 1 + 4 = 5 √5 = √5 Now, imagine a decagon with side length 1 unit. The diagonal of this decagon is equal to √5 units. Using a compass and straightedge, we can construct a sequence of triangles and decagons to approximate the value of √5. *Decimal Expansion:* We can express √5 as a decimal using the following method: √5 = 2 + 0.2 + 0.01 + 0.0005 + ... (using the Babylonian method or other numerical methods) This decimal expansion converges to approximately 2.2361. √7: *Geometric Method:* Imagine a heptagon with side length 1 unit. Draw a diagonal, creating two similar triangles. Using the Pythagorean theorem: a^2 + b^2 = c^2 where a and b are the legs, and c is the hypotenuse. 1^2 + (√7)^2 = (√14)^2 1 + 7 = 14 √7 = √7 Now, imagine a 14-gon with side length 1 unit. The diagonal of this 14-gon is equal to √7 units. Using a compass and straightedge, we can construct a sequence of triangles and 14-gons to approximate the value of √7. *Decimal Expansion:* We can express √7 as a decimal using the following method: √7 = 2 + 0.6 + 0.03 + 0.0015 + ... (using the Babylonian method or other numerical methods) This decimal expansion converges to approximately 2.6458. Here are the approximate values: - √3 ≈ 1.7321 - √5 ≈ 2.2361 - √7 ≈ 2.6458
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  • To understand how √2 equals approximately 1.4142, we can use various mathematical techniques. Here's a broad explanation:

    1. Geometric Method:
    Imagine a right-angled triangle with both legs equal to 1 unit. Using the Pythagorean theorem:

    a^2 + b^2 = c^2

    where a and b are the legs, and c is the hypotenuse.

    1^2 + 1^2 = c^2
    2 = c^2
    c = √2

    Now, imagine a square with a side length of 1 unit. The diagonal of this square is equal to √2 units.

    Using a compass and straightedge, we can construct a sequence of triangles and squares to approximate the value of √2.

    2. Decimal Expansion:
    We can express √2 as a decimal using the following method:

    √2 = 1 + 0.4 + 0.02 + 0.0004 + ... (using the Babylonian method or other numerical methods)

    This decimal expansion converges to approximately 1.4142.

    3. Continued Fractions:
    We can express √2 as a continued fraction:

    √2 = 1 + 1/(2 + 1/(2 + 1/(2 + ...)))

    This continued fraction converges to approximately 1.4142.

    4. Babylonian Method:
    This ancient method involves making an initial guess, then iteratively refining that guess using the formula:

    x(n+1) = (x(n) + 2/x(n)) / 2

    Starting with an initial guess of 1, we can iterate this formula to converge to approximately 1.4142.

    These mathematical techniques demonstrate how √2 equals approximately 1.4142.
    To understand how √2 equals approximately 1.4142, we can use various mathematical techniques. Here's a broad explanation: 1. Geometric Method: Imagine a right-angled triangle with both legs equal to 1 unit. Using the Pythagorean theorem: a^2 + b^2 = c^2 where a and b are the legs, and c is the hypotenuse. 1^2 + 1^2 = c^2 2 = c^2 c = √2 Now, imagine a square with a side length of 1 unit. The diagonal of this square is equal to √2 units. Using a compass and straightedge, we can construct a sequence of triangles and squares to approximate the value of √2. 2. Decimal Expansion: We can express √2 as a decimal using the following method: √2 = 1 + 0.4 + 0.02 + 0.0004 + ... (using the Babylonian method or other numerical methods) This decimal expansion converges to approximately 1.4142. 3. Continued Fractions: We can express √2 as a continued fraction: √2 = 1 + 1/(2 + 1/(2 + 1/(2 + ...))) This continued fraction converges to approximately 1.4142. 4. Babylonian Method: This ancient method involves making an initial guess, then iteratively refining that guess using the formula: x(n+1) = (x(n) + 2/x(n)) / 2 Starting with an initial guess of 1, we can iterate this formula to converge to approximately 1.4142. These mathematical techniques demonstrate how √2 equals approximately 1.4142.
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  • Do everything you can to stay happy. You mustn't please anyone.
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