1,301 prompts matching "Finding how many terms an arithmetic progression has"
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Quiz: Expanding a 3 by 3 determinant along a row or column containing noughts
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Worked Example: Evaluating a 3 by 3 determinant by the rule of Sarrus
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Spot My Mistake: Forming the determinant Dx by replacing the first column
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Worked Example: Forming the determinant Dy by replacing the second column
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Explain Back: What a coefficient determinant of nought says about the system
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Spot My Mistake: Checking cofactors by expanding the determinant along a second row
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Worked Example: The identity that A times its adjoint gives the determinant times the identity
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WAEC Prep: How long the inverse of a 3 by 3 matrix takes, and how to shorten it
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WAEC Prep: Mass, and how it differs from weight
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WAEC Prep: The newton, and how it is defined
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Learn: Finding the coefficient of a stated power in an expansion
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Explain Back: Finding n and p from a given mean and variance
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Learn: Finding lambda from a stated mean
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WAEC Prep: Showing a triangle is right-angled using the dot product
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WAEC Prep: The conjugate of a complex number, and how it is written
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WAEC Prep: The conjugate shown on an Argand diagram
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Practice: The addition of complex numbers shown on an Argand diagram
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Quiz: The roots of a complex number shown on an Argand diagram
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Spot My Mistake: Finding the constant of integration from a given point
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Explain Back: The sum of the first n terms of a geometric progression
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