1,334 prompts matching "Learn: What makes an expression in the roots symmetric"
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Common Mistakes: Solving an equation in which the unknown sits under a root
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Learn: The sum and the product of the roots read from the coefficients
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Explain Back: The range of values of k for which the roots are real
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WAEC Prep: The identity matrix, and what it does in a product
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Learn: The effect on a determinant of swapping two rows
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Explain Back: What a coefficient determinant of nought says about the system
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Learn: Swapping and negating the entries when inverting a 2 by 2 matrix
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Learn: Inertia, and what mass actually measures
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Learn: Finding the coefficient of a stated power in an expansion
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Learn: The standard deviation of a binomial distribution
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Learn: Subtracting one vector from another
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Learn: The real and the imaginary parts of a complex number
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Learn: Choosing between the product rule and the quotient rule
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Learn: An area lying below the x-axis, and its sign
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Learn: Connected rates of change through the chain rule
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Learn: The multiplication and division laws of indices used together
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Show All Working: Solving a logarithmic equation and rejecting the invalid root
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Worked Example: The discriminant, and what each of its three cases means
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WAEC Prep: Forming an equation whose roots are each two more than the original
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Learn: Finding alpha squared plus beta squared from the sum and product
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