1,316 prompts matching "Non-calculator completing the square with fractional coefficients"
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Worked Example: What a determinant of nought means for a 2 by 2 matrix
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Explain Back: Showing that a system of concurrent forces is in equilibrium
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Practice: Finding an unknown force from a closed polygon
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Practice: Resolving three forces in two perpendicular directions
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Explain Back: A particle hanging from two strings set at different angles
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Explain Back: A probability distribution table for a discrete random variable
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Worked Example: Finding a particular term of a binomial expansion
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Practice: Using a binomial expansion to approximate a number
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Explain Back: Finding n and p from a given mean and variance
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Explain Back: Converting a value to a z-score
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Worked Example: Finding a value from a given probability by working backwards
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Practice: A vector of stated magnitude in a given direction
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Worked Example: Testing two vectors for perpendicularity
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Practice: Equating real and imaginary parts to find two unknowns
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Worked Example: Squaring a complex number
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Practice: Converting a complex number from polar form back to a plus bi
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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
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Practice: Differentiating sin x and cos x
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Explain Back: Differentiating tan x
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