1,320 prompts matching "Finding the identity element from a rule such as a*b = a + b - 3"
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Explain Back: Finding the identity element of a binary operation
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Finding f(x) given a description of the function rule
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Quiz: The zero matrix as the identity for matrix addition
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WAEC Prep: Finding the mean or the standard deviation from a given probability
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WAEC Prep: Finding the angle between two vectors from their dot product
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Spot My Mistake: Finding the constant of integration from a given point
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Worked Example: Finding the first term and the common difference from two given terms
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Spot My Mistake: Finding the common ratio from two given terms
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Spot My Mistake: Finding the inverse of an element under a binary operation
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Learn: Finding alpha squared plus beta squared from the sum and product
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Practice: Finding alpha minus beta from the sum and the product
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Quiz: Finding the centre and the radius from the general equation
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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Final Revision: The power set, and how many subsets a set of n elements has
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Finding the inverse of a simple linear function
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Quiz: Finding an unknown entry from a stated matrix equation
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Quiz: Arranging the equations in standard form before applying Cramer's rule
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Practice: Turning a minor into a cofactor with the sign rule
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Quiz: Checking an inverse by multiplying to get the identity
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Practice: Finding an unknown force from a closed polygon
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