1,332 prompts matching "Teach me what a tautology is"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Spot My Mistake: Finding the adjoint of a 3 by 3 matrix
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Worked Example: The identity that A times its adjoint gives the determinant times the identity
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Spot My Mistake: Why the inverse must be applied on the correct side
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Practice: Comparing the inverse method with elimination for three equations
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Worked Example: The weight of a body as mass times g
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Spot My Mistake: Compounding three forces acting at one point
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Spot My Mistake: The greatest and the least resultant of two given forces
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Spot My Mistake: Drawing the triangle of forces to scale to find an unknown force
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Spot My Mistake: Why friction does not depend on the area of contact
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Worked Example: The moment of a force about a point on its own line of action
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Worked Example: The total moment of three parallel forces about one end
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Spot My Mistake: Using concurrence to find the direction of an unknown third force
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Spot My Mistake: Finding two unknown tensions from three forces in equilibrium
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Spot My Mistake: When Lami's theorem may be used, and when it may not
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Spot My Mistake: The probability of exactly r successes in n trials
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Spot My Mistake: Reading a probability from the standard normal table
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Quiz: Writing a two-dimensional vector as a column
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Quiz: The direction cosines of a vector in three dimensions
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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Practice: The dot product as the magnitudes times the cosine of the angle
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