878 prompts matching "Checking a root of a cubic by substitution"
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Quiz: Checking an inverse by multiplying to get 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: Checking the determinant before attempting a 3 by 3 inverse
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WAEC Prep: The inverse of a 3 by 3 matrix from its adjoint and its determinant
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Learn: The order of the steps in inverting a 3 by 3 matrix
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Quiz: Checking a 3 by 3 inverse by multiplication
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WAEC Prep: The magnitude of a vector after multiplication by a scalar
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WAEC Prep: Why the square root of a negative number needs i
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WAEC Prep: Writing the square root of minus nine in terms of i
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WAEC Prep: The square roots of a complex number
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WAEC Prep: The arguments of the n roots, spaced equally round the circle
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WAEC Prep: The n nth roots of a complex number
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Learn: The cube roots of unity
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Quiz: The roots of a complex number shown on an Argand diagram
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WAEC Prep: The sum and product of a pair of complex roots
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Practice: Why complex roots of a real quadratic come in conjugate pairs
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WAEC Prep: Differentiating the square root of a function
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Worked Example: Classifying a stationary point by the sign of the gradient either side
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Show all working: the determinant of a three by three matrix
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Teach me how to find the writing the inverse of a two by two matrix with the adjugate
You are my SS3 Further Mathematics tutor. Teach me writing the inverse of a two by two mat