1,332 prompts matching "Explain solving cubic equations back to me"
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WAEC Prep: Checking a matrix subtraction by adding back
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Worked Example: Taking a common factor out of a matrix
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Quiz: Solving AX equals B and XA equals B by different routes
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Quiz: Finding an unknown entry from a stated matrix equation
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Worked Example: What a determinant of nought means for a 2 by 2 matrix
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Worked Example: The identity that A times its adjoint gives the determinant times the identity
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WAEC Prep: Simultaneous equations with fractional coefficients solved by matrix
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Practice: What a singular coefficient matrix says about the equations
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Worked Example: The weight of a body as mass times g
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WAEC Prep: Resolving before compounding several 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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Practice: Resolving three forces in two perpendicular directions
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Worked Example: Matching each force to the sine of the angle opposite it
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Worked Example: The distance between two points in three dimensions
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Worked Example: Finding the unit vector in the direction of a given vector
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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: Testing two vectors for perpendicularity
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Worked Example: Differentiating a bracket raised to a power
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