1,303 prompts matching "Why brackets matter when an operation is not associative"
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WAEC exam question: forming a quadratic equation from a word problem
I am in SS 3. Give me a WAEC-style Further Maths word problem, such as one about two numbe
Non-calculator paper: coordinate geometry with fractional gradients
I am in SS 3. Give me a non-calculator coordinate geometry question where the gradient wor
Worked Example: Adding two 3 by 3 matrices
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Practice: A 2 by 2 matrix multiplied by a column vector
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Worked Example: The associative law for the product of three matrices
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Worked Example: Taking a common factor out of a matrix
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Practice: A diagonal matrix
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Practice: Evaluating AB minus BA
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Practice: Turning a minor into a cofactor with the sign rule
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Practice: What a singular coefficient matrix says about the equations
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Practice: Comparing the inverse method with elimination for three equations
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Worked Example: Checking the solution of three equations by substitution
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Worked Example: The weight of a body as mass times g
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Practice: The parallelogram law of forces
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Practice: Choosing the most convenient pair of directions to resolve along
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Worked Example: Drawing the polygon of forces to scale
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Worked Example: The moment of a force about a point on its own line of action
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Worked Example: The total moment of three parallel forces about one end
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Practice: Resolving three forces in two perpendicular directions
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Practice: The probability of at least one success
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