1,251 prompts matching "Common surd mistakes to watch out for"
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Learn: A space diagram and a force diagram drawn side by side
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WAEC Prep: The triangle of forces for three forces in equilibrium
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Worked Example: Using the sine rule on the triangle of forces
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WAEC Prep: The polygon of forces for several forces in equilibrium
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Learn: What an unclosed polygon of forces tells you
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Practice: Finding an unknown force from a closed polygon
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Spot My Mistake: Why friction does not depend on the area of contact
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WAEC Prep: The moment of a weight about a hinge
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WAEC Prep: Calculating a moment as force times perpendicular distance
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Explain Back: The units of a moment, and why they are newton metres
I have just studied the units of a moment, and why they are newton metres in my SS3 Furthe
WAEC Prep: Using concurrence to locate an unknown line of action
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WAEC Prep: Why three non-parallel forces in equilibrium must be concurrent
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Quiz: A rod resting against a wall, and the concurrence of its three forces
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Practice: Resolving three forces in two perpendicular directions
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Learn: Finding two unknown forces by Lami's theorem
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Spot My Mistake: When Lami's theorem may be used, and when it may not
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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WAEC Prep: The binomial expansion of a plus b all to the power n
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Practice: Using a binomial expansion to approximate a number
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Spot My Mistake: The probability of exactly r successes in n trials
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