1,334 prompts matching "Give me common mistakes students make in matrices"
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Show All Working: Three roots in arithmetic progression in a cubic
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Spot My Mistake: Showing the solution of an inequality on a number line
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Learn: The meaning of n factorial, and how to evaluate it
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Worked Example: The number of arrangements of n different objects in a row
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Explain Back: Arrangements in which two particular objects must stay together
I have just studied arrangements in which two particular objects must stay together in my
Learn: The meaning of n choose r, and how to evaluate it
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Spot My Mistake: The identity that n choose r equals n choose n minus r
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Spot My Mistake: The double angle formula for sine
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Spot My Mistake: Solving an equation by first applying a Pythagorean identity
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Show All Working: Solving a cos x plus b sin x equals c by the R method
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Spot My Mistake: The effect of c in y equals sin x plus c
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Show All Working: Reading the solutions of a trigonometric equation off a graph
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Spot My Mistake: The equation of the tangent to a circle at a point on it
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Worked Example: The parametric form of a point on a parabola
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WAEC Prep: The standard deviation of grouped data using an assumed mean
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Learn: The moment of a force about a point, and its units
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Quiz: The principle of moments for a body in equilibrium
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Spot My Mistake: The point at which a loaded beam will tip about its support
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WAEC Prep: A couple, and why its moment is the same about every point
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Worked Example: Relative velocity when two bodies move along the same line
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