1,326 prompts matching "Rationalising the denominator when it's a surd minus a surd"
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WAEC Prep: The position vector of a point relative to the origin
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Worked Example: The position vector of the midpoint of AB
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WAEC Prep: The parallelogram law of vector addition
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Worked Example: The triangle law of vector addition
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WAEC Prep: The dot product of a vector with itself
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Practice: The dot product as the magnitudes times the cosine of the angle
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WAEC Prep: The conjugate of a complex number, and how it is written
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Practice: The sum of a complex number and its conjugate
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Practice: The addition of complex numbers shown on an Argand diagram
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WAEC Prep: The polar form written as r cos theta plus i r sin theta
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WAEC Prep: De Moivre's theorem used with a negative index
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Learn: The cube roots of unity
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WAEC Prep: Why the limit is taken as h tends to nought
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WAEC Prep: The definition of the derivative as a limit
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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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Explain Back: The constant of integration, and why it appears
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WAEC Prep: A definite integral evaluated with the limits reversed
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Learn: An area lying below the x-axis, and its sign
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WAEC Prep: The starting velocity recovered as a constant of integration
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