1,330 prompts matching "Practice: Giving the roots correct to two decimal places"
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WAEC Prep: Writing a force as a vector in i and j form
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Worked Example: The powers of i, and the cycle they follow
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Learn: The real and the imaginary parts of a complex number
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WAEC Prep: Adding two complex numbers
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WAEC Prep: Multiplying two complex numbers
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WAEC Prep: The conjugate of a purely imaginary number
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WAEC Prep: The argument measured in radians
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WAEC Prep: The conjugate shown on an Argand diagram
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Explain Back: The locus of a complex number at a fixed distance from a point
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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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WAEC Prep: Expanding cos of 3 theta using de Moivre's theorem
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WAEC Prep: Simplifying the answer after using the quotient rule
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Worked Example: The quotient rule for differentiation
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Learn: Choosing between the product rule and the quotient rule
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WAEC Prep: The chain rule applied twice in one problem
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Worked Example: Differentiating a bracket raised to a power
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WAEC Prep: A stationary point at which the second derivative is nought
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WAEC Prep: The greatest and least values of a function in a closed interval
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Worked Example: Classifying a stationary point by the sign of the gradient either side
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