1,044 prompts matching "The identity that n choose r equals n choose n minus r"
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WAEC Prep: A pair that gives no real solution at all
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Show All Working: A simultaneous pair in which the second equation is a circle
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Show All Working: The point of contact when a line touches a curve
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Common Mistakes: A line and a curve meeting once without the line being a tangent
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WAEC Prep: Expressions that are not polynomials, and why not
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Common Mistakes: Multiplying one polynomial by another
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Practice: A division that leaves no remainder
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Explain Back: A division that leaves a constant remainder
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Spot My Mistake: A division that leaves a linear remainder
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Show All Working: Synthetic division as a shorter route
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Common Mistakes: The degree of the quotient and of the remainder
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Common Mistakes: The remainder theorem applied to a quartic
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Practice: Showing that x plus 3 is a factor of a given polynomial
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Explain Back: Finding a coefficient so that a stated expression is a factor
I have just studied finding a coefficient so that a stated expression is a factor in my SS
Show All Working: What the factor theorem says about the roots
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Common Mistakes: Using the factor theorem before dividing
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Show All Working: Solving a cubic that must first be rearranged
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Worked Example: Sentences that are not propositions
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Show All Working: Reading the final column of a truth table
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Common Mistakes: Comparing two statements by their truth tables
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