1,331 prompts matching "find the gradient of y = x^3 - 4x at the point where x = 2"
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Practice: Choosing a committee that must contain one particular person
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Learn: The Pythagorean identity, sin squared plus cos squared equals one
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Worked Example: The identities for one plus tan squared and one plus cot squared
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Spot My Mistake: The double angle formula for sine
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Explain Back: Solving a quadratic in sin x
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Spot My Mistake: Solving an equation by first applying a Pythagorean identity
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Quiz: The tangent curve and its asymptotes
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Spot My Mistake: The general form ax plus by plus c equals nought
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Learn: The parabola y squared equals 4ax, with its focus and directrix
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Practice: The ellipse in standard form, and its two axes
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Quiz: The semi-interquartile range
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Worked Example: The sign convention for clockwise and anticlockwise moments
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Quiz: The tension in the string joining two connected particles
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Learn: Resolving the weight along and perpendicular to an inclined plane
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Worked Example: The normal reaction on a body resting on a smooth incline
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Practice: The frictional force on a body on a rough incline
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Spot My Mistake: The least force needed to move a body up a rough incline
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Learn: Angular velocity, and how it relates to linear speed
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Explain Back: The displacement written as x equals a sin omega t
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Worked Example: The tension in a stretched elastic string
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