1,328 prompts matching "Learn: What an identity element is"
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Worked Example: The sign convention for clockwise and anticlockwise moments
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WAEC Prep: A couple, and why its moment is the same about every point
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Final Revision: The distance connected particles travel before one reaches the floor
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Common Mistakes: The work done against friction on an incline
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Quiz: The centripetal force, and what supplies it in a given situation
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Common Mistakes: A particle oscillating on the end of an elastic string
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Spot my mistake: Treating the variance of a binomial distribution as its standard deviation
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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: Reporting an area computed below the x-axis as a negative distance travelled
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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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Show that command word: binomial coefficient identity
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Quiz me on recognising which command word fits a blank exam question
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Spot My Mistake: A symmetric matrix, equal to its own transpose
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Spot My Mistake: Forming the determinant Dx by replacing the first column
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Spot My Mistake: Checking cofactors by expanding the determinant along a second row
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Spot My Mistake: The greatest and the least resultant of two given forces
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Spot My Mistake: Drawing the triangle of forces to scale to find an unknown force
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Spot My Mistake: Using concurrence to find the direction of an unknown third force
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Spot My Mistake: When Lami's theorem may be used, and when it may not
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