1,331 prompts matching "Which form of the sum formula to use when r is less than one"
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Practice: Solving an equation of the form sin of 2x equals a given value
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Worked Example: The parametric form of a point on a parabola
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Show All Working: The effect on the standard deviation of adding a constant to every value
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Learn: The velocity of one body relative to another
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Show All Working: The angle at which a body just begins to slide
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Spot my mistake: Assuming the normal curve meets the horizontal axis at its points of inflexion
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Spot my mistake: Reading a strong correlation between two variables as proof that one causes the other
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Find the sum to infinity command word
I am in SS 3. Set me an exam question phrased 'find the sum to infinity', for a geometric
Find the range of x for which y = x^3 - 3x is increasing
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WAEC Prep: The transpose of a column vector
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WAEC Prep: Writing the transpose of a matrix by turning rows into columns
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Practice: The sign pattern of the cofactors in a 3 by 3 determinant
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WAEC Prep: The cofactor of a corner entry
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WAEC Prep: Why the cofactor signs alternate
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Practice: Turning a minor into a cofactor with the sign rule
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Explain Back: Writing out the full matrix of cofactors
I have just studied writing out the full matrix of cofactors in my SS3 Further Mathematics
Spot My Mistake: Checking cofactors by expanding the determinant along a second row
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WAEC Prep: The adjoint as the transpose of the matrix of cofactors
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WAEC Prep: How long the inverse of a 3 by 3 matrix takes, and how to shorten it
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WAEC Prep: The component of a force at thirty degrees to the horizontal
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