1,334 prompts matching "Learn: Why a surd is never left in the denominator"
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Worked Example: The direction of the resultant of two forces
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Practice: The direction of the resultant of several coplanar forces
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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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Practice: Resolving three forces in two perpendicular directions
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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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Worked Example: Finding a value from a given probability by working backwards
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Practice: The components of a vector given its magnitude and direction
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Practice: The magnitude of the sum of two vectors
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Practice: A vector of stated magnitude in a given direction
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Worked Example: The triangle law of vector addition
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Worked Example: Testing two vectors for perpendicularity
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Worked Example: The powers of i, and the cycle they follow
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Practice: Equating real and imaginary parts to find two unknowns
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Worked Example: Squaring a complex number
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Practice: The sum of a complex number and its conjugate
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Practice: The addition of complex numbers shown on an Argand diagram
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Practice: Converting a complex number from polar form back to a plus bi
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