1,329 prompts matching "IGCSE Additional Maths Y10: An exact answer left in surd form — Worked Example"
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Worked Example: The probability of no events at all in a Poisson distribution
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Explain Back: Converting a value to a z-score
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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: Using the normal tables when the z-score is negative
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Worked Example: The continuity correction when approximating a discrete distribution
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Learn: The coordinates of a point in three dimensions
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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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Worked Example: Finding the unit vector in the direction of a given vector
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Practice: A vector of stated magnitude in a given direction
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Worked Example: The position vector of the midpoint of AB
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Explain Back: The dot product of two perpendicular vectors
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Worked Example: Testing two vectors for perpendicularity
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Practice: Deciding whether a point lies on a given line
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Worked Example: Squaring a complex number
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Practice: Converting a complex number from polar form back to a plus bi
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Explain Back: Raising a complex number to a power by de Moivre's theorem
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Learn: The cube roots of unity
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Practice: Why complex roots of a real quadratic come in conjugate pairs
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