1,305 prompts matching "Solving a surd equation that gives an extraneous root"
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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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WAEC Prep: A quadratic whose roots are 2 plus i and 2 minus i
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WAEC Prep: Solving a quadratic whose discriminant is negative
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Spot My Mistake: Finding the constant of integration from a given point
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WAEC Prep: Integrating a bracket that must be expanded first
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WAEC Prep: The equations of motion for constant acceleration
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WAEC Prep: An arithmetic progression whose terms are given in terms of n
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Worked Example: Finding the first term and the common difference from two given terms
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Solve simultaneous equations using an inverse matrix #1
I am in SS 3. Show me how to write 2x + 3y = 7 and x - y = 1 as a matrix equation, find th
Solve simultaneous equations using an inverse matrix #2
I am in SS 3. Show me how to write 4x + y = 9 and 2x + 3y = 8 as a matrix equation, find t
Solve simultaneous equations using an inverse matrix #3
Show me how to write 3x - 2y = 4 and x + y = 6 as a matrix equation, find the inverse of t
Spot My Mistake: De Morgan's law that the complement of a union is the intersection of the complements
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Quiz: Multiplying two surds and simplifying the result
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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
I have just studied the range of values of k for which the roots are real in my SS3 Furthe
Spot My Mistake: The relations between roots and coefficients for a quartic
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Learn: Solving a linear inequality, and reversing the sign on dividing by a negative
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Worked Example: Solving cos x equals a negative value, and finding both solutions
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Explain Back: The equation of the line through two given points
I have just studied the equation of the line through two given points in my SS3 Further Ma