1,080 prompts matching "A rule where distributivity holds one way only"
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Quiz: Multiplying a matrix by minus one
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Practice: Turning a minor into a cofactor with the sign rule
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Spot My Mistake: Compounding three forces acting at one point
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Learn: The component of a force along a stated direction
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Quiz: Recovering the original force from its two components
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Worked Example: The total moment of three parallel forces about one end
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Spot My Mistake: Why the probabilities in a distribution must sum to one
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Practice: The probability of at least one success
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Spot My Mistake: The proportion of a normal distribution within one, two and three standard deviations
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Practice: The components of a vector given its magnitude and direction
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Learn: Subtracting one vector from another
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Learn: The angle between a vector and one of the axes
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Quiz: Subtracting one complex number from another
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Spot My Mistake: Dividing one complex number by another using the conjugate
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Explain Back: Differentiating one over x from first principles
I have just studied differentiating one over x from first principles in my SS3 Further Mat
Solve simultaneous equations with Cramer's rule (order 2) #1
I am in SS 3. Use Cramer's rule to solve 2x + 3y = 7 and x - y = 1. Set up the coefficient
Solve simultaneous equations with Cramer's rule (order 2) #3
Use Cramer's rule to solve x + 2y = 8 and 3x - y = 3. Set up the coefficient determinant a
Solve a 3x3 simultaneous equation system with Cramer's rule #1
I am in SS 3. Use Cramer's rule to solve the system x + y + z = 6, 2x - y + z = 3, x + 2y
Solve a 3x3 simultaneous equation system with Cramer's rule #3
Use Cramer's rule to solve the system x - 2y + z = -1, 3x + y - z = 8, 2x - y + 3z = 5. Sh
Resolve a force into horizontal and vertical components #1
Give me a resolution of forces problem with a force of 10N acting at 30 degrees to the hor