1,333 prompts matching "expand (1-x)^4 fully and use it to estimate (0.98)^4"
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Worked Example: A singular matrix, and why it has no inverse
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Practice: The condition on the orders for a product to exist
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WAEC Prep: Expanding a 3 by 3 determinant along the first row
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WAEC Prep: Cramer's rule applied to a pair with fractional coefficients
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Practice: Turning a minor into a cofactor with the sign rule
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Quiz: Checking an inverse by multiplying to get the identity
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Worked Example: The units of mass, and the SI unit
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WAEC Prep: Resolving a force into horizontal and vertical components
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WAEC Prep: The two conditions for a rigid body to be in equilibrium
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Practice: Limiting friction, and the greatest value it can reach
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WAEC Prep: The resultant moment of a couple and a force together
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WAEC Prep: The moment of two equal and opposite parallel forces
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WAEC Prep: The triangle of forces and concurrence taken together
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Quiz: A rod resting against a wall, and the concurrence of its three forces
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WAEC Prep: The conditions for a particle under three forces to be in equilibrium
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Explain Back: A probability distribution table for a discrete random variable
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Spot My Mistake: Why the probabilities in a distribution must sum to one
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WAEC Prep: The probabilities of nought, one and two successes read off an expansion
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WAEC Prep: Using the mean of a Poisson distribution to find a probability
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Quiz: The area under the normal curve, and what it represents
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