1,334 prompts matching "Surd answers in area and perimeter questions"
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Worked Example: The intersection of two overlapping sets
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Explain Back: The symmetric difference of two sets
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Worked Example: Testing whether a binary operation is closed on a given set
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Explain Back: Finding the identity element of a binary operation
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Explain Back: Rationalising a denominator of the form a plus root b using the conjugate
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Explain Back: The range of values of k for which the roots are real
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Worked Example: Finding one over alpha plus one over beta
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Explain Back: Finding alpha squared beta plus alpha beta squared
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Worked Example: Evaluating a polynomial by substitution
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Explain Back: Finding an unknown coefficient given that a stated factor divides the polynomial
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Explain Back: Forming a cubic equation whose three roots are given
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Worked Example: Solving a quadratic inequality by sketching the parabola
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Explain Back: Solving an inequality that involves a modulus
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Worked Example: The number of arrangements of n different objects in a row
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Explain Back: Arrangements in which two particular objects must stay together
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Explain Back: Choosing a committee with a stated number from each of two groups
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Explain Back: The compound angle formula for tan of A plus B
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Explain Back: Solving a quadratic in sin x
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Explain Back: The effect of b in y equals sin bx on the period
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Worked Example: The midpoint formula applied to a given segment
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