1,101 prompts matching "IGCSE Additional Maths Y10: Why only a one-one function has an inverse — IGCSE E"
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Quiz: The direction cosines of a vector in three dimensions
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Worked Example: The distance between two points in three dimensions
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Learn: The magnitude of a three-dimensional vector
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Quiz: The direction of a vector as an angle with the x-axis
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Worked Example: Finding the unit vector in the direction of a given vector
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Learn: The unit vectors i, j and k
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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Worked Example: The position vector of the midpoint of AB
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Worked Example: The triangle law of vector addition
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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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Quiz: The vector equation of the line through two given points
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Explain Back: The resultant of forces given as vectors
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Spot My Mistake: The equilibrium condition written in vector form
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Worked Example: The powers of i, and the cycle they follow
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Learn: The real and the imaginary parts of a complex number
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Worked Example: Squaring a complex number
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Quiz: The product of a complex number and its conjugate
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Quiz: The argument of a complex number
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Explain Back: The locus of a complex number at a fixed distance from a point
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