1,334 prompts matching "A sign error in the formula, and how to catch it"
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WAEC Prep: The probability that a normal variable exceeds the mean by more than one standard deviation
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through the probability th
Practice: Using the normal tables when the z-score is negative
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Spot My Mistake: When the normal distribution may approximate the binomial
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WAEC Prep: Two vectors that are equal but drawn in different places
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through two vectors that a
Spot My Mistake: Drawing a vector as a directed line segment
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WAEC Prep: A three-dimensional vector parallel to another
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WAEC Prep: The magnitude of a vector after multiplication by a scalar
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WAEC Prep: A vector of magnitude one in three dimensions
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WAEC Prep: The magnitude of a two-dimensional vector
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Practice: The magnitude of the sum of two vectors
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WAEC Prep: Using a unit vector to write a force of given size
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WAEC Prep: A unit vector, and what makes it a unit
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Practice: A vector of stated magnitude in a given direction
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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WAEC Prep: The parallelogram law of vector addition
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WAEC Prep: Adding three vectors in component form
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WAEC Prep: Adding two vectors given in component form
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WAEC Prep: The dot product of a vector with itself
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Practice: The dot product as the magnitudes times the cosine of the angle
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WAEC Prep: The angle between two three-dimensional vectors
Act as my WAEC Further Mathematics coach. I am in SS 3. Take me through the angle between