1,334 prompts matching "Give me practice on permutations and combinations"
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Common Mistakes: The condition for a body to complete a vertical circle
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Learn: The defining equation of 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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Common Mistakes: The energy of a body in simple harmonic motion
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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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Show All Working: The work done in stretching an elastic string
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Common Mistakes: A particle oscillating on the end of an elastic string
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Spot my mistake: Adding the magnitudes of concurrent forces to get the magnitude of their resultant
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Spot my mistake: Treating the rth term of a binomial expansion as the one carrying the rth power
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Spot my mistake: Treating any vector with small components as a unit vector
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Spot my mistake: Applying the power rule to the integral of one over x
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Spot my mistake: Leaving out the constant of integration when velocity is found from acceleration
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Spot my mistake: Using an equation of constant acceleration on a body whose acceleration is changing
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Spot my mistake: Reading a strong correlation between two variables as proof that one causes the other
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Show that command word: binomial coefficient identity
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Worked example: expand (2-x)^5 using Pascal's triangle
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Worked example: prove an argument invalid using a truth table
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Worked Example: Taking a common factor out of a matrix
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