1,334 prompts matching "Expressing a rationalised answer in the form a root b over c"
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Learn: Solving sin x equals a given value between 0 and 360 degrees
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Worked Example: Solving cos x equals a negative value, and finding both solutions
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Explain Back: Solving a quadratic in sin x
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Final Revision: Losing solutions by dividing through by cos x
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Worked Example: The equation of a circle with a given centre and radius
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Practice: The equation of a circle on a given diameter
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Learn: The parabola y squared equals 4ax, with its focus and directrix
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Common Mistakes: Identifying a conic from a general second-degree equation
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Learn: The range, and why it is a weak measure of spread
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Practice: The mean deviation from the mean
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Worked Example: The sign convention for clockwise and anticlockwise moments
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Learn: The velocity of one body relative to another
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Common Mistakes: The relative displacement of two bodies after a given time
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Worked Example: The common acceleration of two connected particles
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Practice: A particle on a smooth table connected to a hanging particle
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Explain Back: A particle on a rough table connected to a hanging particle
I have just studied a particle on a rough table connected to a hanging particle in my SS3
Learn: Angular velocity, and how it relates to linear speed
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Practice: A car rounding a bend on a level road
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Explain Back: A car on a banked track
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Common Mistakes: The condition for a body to complete a vertical circle
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