1,331 prompts matching "The truth table for a statement with two connectives"
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Worked Example: Evaluating a 3 by 3 determinant by the rule of Sarrus
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Explain Back: What a coefficient determinant of nought says about the system
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Explain Back: Writing out the full matrix of cofactors
I have just studied writing out the full matrix of cofactors in my SS3 Further Mathematics
Explain Back: Finding the adjoint of a 2 by 2 matrix quickly
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Worked Example: The identity that A times its adjoint gives the determinant times the identity
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Explain Back: The inverse of a diagonal matrix
I have just studied the inverse of a diagonal matrix in my SS3 Further Mathematics class.
Worked Example: Checking the solution of three equations by substitution
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Worked Example: The units of mass, and the SI unit
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Worked Example: The weight of a body as mass times g
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Worked Example: Marking the weight, the normal reaction and the friction on a diagram
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Explain Back: Why the total moment about any point must be nought
I have just studied why the total moment about any point must be nought in my SS3 Further
Explain Back: The units of a moment, and why they are newton metres
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Explain Back: Locating the point of concurrence on a diagram
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Worked Example: The probability of no events at all in a Poisson distribution
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Explain Back: Testing whether data are Poisson by comparing mean and variance
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Worked Example: The continuity correction when approximating a discrete distribution
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Worked Example: Finding the unit vector in the direction of a given vector
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Worked Example: The position vector of the midpoint of AB
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Worked Example: The triangle law of vector addition
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Worked Example: The powers of i, and the cycle they follow
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