889 prompts matching "Show that command word: a function is its own inverse"
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Practice: Working through a quadratic by completing the square, step by step
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Learn: Deriving the quadratic formula by completing the square
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Worked Example: Substituting a, b and c into the quadratic formula correctly
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Practice: Giving the roots correct to two decimal places
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Learn: The sum of the roots as minus b over a
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Worked Example: The product of the roots as c over a
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Practice: Forming an equation from a given sum and product
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Learn: What makes an expression in the roots symmetric
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Worked Example: The identity linking alpha squared plus beta squared to the sum and product
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Practice: The value of alpha to the fourth plus beta to the fourth
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Worked Example: Substituting into the quadratic and tidying up
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Practice: The condition for the line to be a tangent
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Learn: What makes an expression a polynomial
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Worked Example: The degree of a polynomial in one variable
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Practice: Polynomial notation such as P of x
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Learn: The statement of the remainder theorem
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Worked Example: The remainder on dividing by x minus 3
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Practice: The remainder on dividing by 2x minus 1
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Learn: The statement of the factor theorem
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Worked Example: How many roots a cubic equation has
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