1,334 prompts matching "Give me common mistakes students make in permutations and combinations"
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WAEC Prep: Finding the angle between two vectors from their dot product
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Worked Example: Testing two vectors for perpendicularity
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WAEC Prep: Converting the vector equation of a line into Cartesian form
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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: Writing the square root of minus nine in terms of i
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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Learn: The real and the imaginary parts of a complex number
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WAEC Prep: Adding three complex numbers
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WAEC Prep: Adding two complex numbers
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Quiz: Subtracting one complex number from another
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WAEC Prep: Multiplying a complex number by a real number
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WAEC Prep: Dividing by a purely imaginary number
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WAEC Prep: Multiplying two complex numbers
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Worked Example: Squaring a complex number
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WAEC Prep: The conjugate of a purely imaginary number
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WAEC Prep: The modulus and the argument taken together
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Quiz: The argument of a complex number
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WAEC Prep: The locus of a complex number equidistant from two points
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WAEC Prep: Plotting a complex number as a point on the Argand plane
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