1,331 prompts matching "find the gradient of y = x^3 - 4x at the point where x = 2"
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WAEC Prep: Friction, and the direction in which it acts
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WAEC Prep: Calculating a moment as force times perpendicular distance
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WAEC Prep: The conditions for a particle under three forces to be in equilibrium
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Spot My Mistake: Finding two unknown tensions from three forces in equilibrium
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WAEC Prep: A lamp hanging from two wires, solved by Lami's theorem
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WAEC Prep: A random variable, and the values it may take
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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Explain Back: Finding n and p from a given mean and variance
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WAEC Prep: Why the total area under the normal curve is one
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WAEC Prep: The standard normal distribution, with mean nought and variance one
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Worked Example: Finding a value from a given probability by working backwards
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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 three-dimensional vector parallel to another
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WAEC Prep: A unit vector, and what makes it a unit
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WAEC Prep: The dot product worked out from components
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WAEC Prep: The angle between two three-dimensional vectors
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WAEC Prep: Showing a triangle is right-angled using the dot product
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WAEC Prep: The resultant force on a particle given in i and j form
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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