1,326 prompts matching "What the formula gives when the discriminant is negative"
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Worked Example: The units of mass, and the SI unit
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Worked Example: The weight of a body as mass times g
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Worked Example: The direction of the resultant of two forces
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Worked Example: Marking the weight, the normal reaction and the friction on a diagram
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Worked Example: Using the sine rule on the triangle of forces
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Worked Example: Drawing the polygon of forces to scale
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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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Worked Example: Matching each force to the sine of the angle opposite it
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Worked Example: The position vector of the midpoint of AB
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Worked Example: The triangle law of vector addition
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Worked Example: The powers of i, and the cycle they follow
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Worked Example: The quotient rule for differentiation
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Worked Example: Classifying a stationary point by the sign of the gradient either side
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Worked Example: Power as the rate of doing work
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Quiz me on 2x2 and 3x3 determinants together
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Explain the difference between differentiation and integration
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Explain-back: the chain rule in calculus
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Worked example: finding the matrix of cofactors and the adjugate
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Worked example: finding the argument in the correct quadrant
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