1,278 prompts matching "Find sum and product of roots of x^2 + 4x - 12 = 0"
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WAEC Prep: Writing a three-dimensional vector in i, j and k form
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WAEC Prep: A unit vector, and what makes it a unit
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Learn: The unit vectors i, j and k
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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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WAEC Prep: The resultant force on a particle given in i and j form
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WAEC Prep: Writing a force as a vector in i and j form
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Explain Back: The resultant of forces given as vectors
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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WAEC Prep: The modulus and the argument taken together
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WAEC Prep: The conjugate shown on an Argand diagram
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WAEC Prep: Plotting a complex number as a point on the Argand plane
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Explain Back: The locus of a complex number at a fixed distance from a point
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Explain Back: Forming a quadratic equation with given complex roots
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Practice: Differentiating sin x and cos x
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Worked Example: Classifying a stationary point by the sign of the gradient either side
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WAEC Prep: The indefinite integral, and its notation
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WAEC Prep: Integrating a bracket that must be expanded first
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Worked Example: The area between a curve and the x-axis
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Learn: An area lying below the x-axis, and its sign
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