1,333 prompts matching "expand (1-x)^4 fully and use it to estimate (0.98)^4"
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Worked Example: The identities for one plus tan squared and one plus cot squared
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Worked Example: The equation of a circle with a given centre and radius
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Spot My Mistake: The equation of the tangent to a circle at a point on it
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Common Mistakes: The condition for a line to be a tangent to a circle
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Practice: The ellipse in standard form, and its two axes
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Final Revision: A ladder leaning against a wall, and the moments acting on it
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Spot My Mistake: An aeroplane in a cross-wind, and its resultant track
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WAEC Prep: A car towing a trailer, and the force in the tow bar
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Quiz: The centripetal force, and what supplies it in a given situation
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Common Mistakes: The condition for a body to complete a vertical circle
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Worked Example: The amplitude, period and frequency of a simple harmonic motion
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Spot my mistake: Treating the kilogram and the kilogram weight as the same unit
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Spot my mistake: Adding the magnitudes of concurrent forces to get the magnitude of their resultant
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Spot my mistake: Treating the variance of a binomial distribution as its standard deviation
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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: Treating any vector with small components as a unit vector
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Spot my mistake: Differentiating a product by multiplying the derivatives of its two factors
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Spot my mistake: Treating the action and the reaction of Newton's third law as forces acting on the same body
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Show that command word: trigonometric identity
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WAEC exam question: the converse, the inverse and the contrapositive
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