1,334 prompts matching "Expressing the answer in the form a plus b root c"
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Practice: Finding an unknown force from a closed polygon
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Worked Example: The total moment of three parallel forces about one end
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Learn: The algebraic sum of moments when the senses differ
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Practice: Resolving three forces in two perpendicular directions
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Explain Back: A particle hanging from two strings set at different angles
I have just studied a particle hanging from two strings set at different angles in my SS3
Explain Back: A probability distribution table for a discrete random variable
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Learn: The expectation of a discrete random variable
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Worked Example: Finding a particular term of a binomial expansion
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Practice: Using a binomial expansion to approximate a number
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Practice: The probability of at least one success
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Explain Back: Finding n and p from a given mean and variance
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Learn: Finding lambda from a stated mean
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Learn: The mean, median and mode of a normal distribution
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Explain Back: Converting a value to a z-score
I have just studied converting a value to a z-score in my SS3 Further Mathematics class. L
Worked Example: Finding a value from a given probability by working backwards
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Learn: The probability that a normal variable lies between two values
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Practice: The components of a vector given its magnitude and direction
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Learn: The magnitude of a three-dimensional vector
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Practice: The magnitude of the sum of two vectors
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Learn: The unit vectors i, j and k
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