1,334 prompts matching "The complement rule used in a counting problem"
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Worked Example: The amplitude, period and frequency of a simple harmonic motion
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WAEC Prep: The simple pendulum as an example of simple harmonic motion
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Show All Working: A mass on a spring performing simple harmonic motion
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Final Revision: Showing that a given motion is simple harmonic
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Learn: Hooke's law, and what the modulus of elasticity means
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Spot My Mistake: A particle hanging in equilibrium on an elastic string
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WAEC Prep: Two elastic strings supporting one particle
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Spot my mistake: Assuming multiplying a vector by a negative scalar leaves its magnitude negative
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Spot my mistake: Treating any vector with small components as a unit vector
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Spot my mistake: Assuming a quadratic with a negative discriminant has no roots at all
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Spot my mistake: Using an equation of constant acceleration on a body whose acceleration is changing
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Non-calculator paper: simplify an index expression
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Show that command word: binomial coefficient identity
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Structured question: find and classify all stationary points
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Spot my mistake in a Pascal's row truth table
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Structured question: permutation versus combination in one paper
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Explain back: difference between permutations and combinations
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Show that command word: a function is its own inverse
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Spot my mistake: dividing a polynomial by long division
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Spot my mistake: finding a stationary point
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