1,334 prompts matching "Quiz me on the using the discriminant to describe the roots"
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WAEC Prep: Comparing two values from different normal distributions by z-score
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Spot My Mistake: Reading a probability from the standard normal table
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Learn: The probability that a normal variable lies between two values
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WAEC Prep: When a Poisson distribution approximates a binomial one
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WAEC Prep: Two vectors that are equal but drawn in different places
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WAEC Prep: A unit vector, and what makes it a unit
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Worked Example: Testing two vectors for perpendicularity
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WAEC Prep: Three forces in equilibrium written as vectors
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WAEC Prep: Writing a force as a vector in i and j form
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WAEC Prep: Why the square root of a negative number needs i
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WAEC Prep: Writing the square root of minus nine in terms of i
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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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Practice: Equating real and imaginary parts to find two unknowns
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WAEC Prep: The modulus of a product of two complex numbers
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WAEC Prep: The locus of a complex number equidistant from two points
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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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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
Act as my SS3 Further Mathematics tutor. Work a question on deriving a multiple angle form