1,334 prompts matching "Adding or subtracting the same number on both sides"
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Explain Back: Why the total moment about any point must be nought
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Learn: Choosing the point about which to take moments
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WAEC Prep: Calculating a moment as force times perpendicular distance
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Learn: The algebraic sum of moments when the senses differ
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Spot My Mistake: The probability of exactly r successes in n trials
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Worked Example: Finding a value from a given probability by working backwards
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WAEC Prep: Two vectors that are equal but drawn in different places
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Spot My Mistake: Drawing a vector as a directed line segment
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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: The dot product as the magnitudes times the cosine of the angle
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Worked Example: Testing two vectors for perpendicularity
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WAEC Prep: Three forces in equilibrium written as vectors
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WAEC Prep: Writing a force as a vector in i and j form
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WAEC Prep: Multiplying a complex number by a real number
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WAEC Prep: Dividing by a purely imaginary number
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WAEC Prep: Multiplying two complex numbers
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Learn: The cube roots of unity
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Practice: Why complex roots of a real quadratic come in conjugate pairs
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Explain Back: Differentiating one over x from first principles
I have just studied differentiating one over x from first principles in my SS3 Further Mat