1,301 prompts matching "A savings problem modelled by an arithmetic progression"
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Show All Working: Solving a cos x plus b sin x equals c by the R method
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Final Revision: Losing solutions by dividing through by cos x
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Spot My Mistake: The general form ax plus by plus c equals nought
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Show All Working: The intersection of a circle and a straight line
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Show All Working: The rectangular hyperbola xy equals c squared
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Final Revision: The focus-directrix definition shared by all the conics
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Show All Working: The effect on the standard deviation of adding a constant to every value
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Show All Working: The time at which two bodies are nearest one another
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Learn: Two particles joined by a light inextensible string over a smooth pulley
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Show All Working: A lift, and the person standing in it
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Show All Working: The angle at which a body just begins to slide
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Show All Working: A body in a vertical circle, and the tension at the top
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Show All Working: The work done in stretching an elastic string
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Spot my mistake: Assuming multiplying a vector by a negative scalar leaves its magnitude negative
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Spot my mistake: Differentiating a product by multiplying the derivatives of its two factors
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Simplifying an expression before solving an equation
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What a function is and function notation
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Evaluating a function at an algebraic input
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Mapping diagrams and function types
I am in SS 3. I'm going to explain how a mapping diagram represents a function, and identi
Composite function leading to solving an equation
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