1,334 prompts matching "IGCSE Additional Maths Y11: A trigonometric equation set in a modelling context"
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Learn: The coordinates of a point in three dimensions
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Quiz: The direction cosines of a vector in three dimensions
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Practice: A vector of stated magnitude in a given direction
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Learn: Subtracting one vector from another
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Practice: The dot product as the magnitudes times the cosine of the angle
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Explain Back: The dot product of two perpendicular vectors
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Practice: Deciding whether a point lies on a given line
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Explain Back: The resultant of forces given as vectors
I have just studied the resultant of forces given as vectors in my SS3 Further Mathematics
Spot My Mistake: The equilibrium condition written in vector form
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Learn: The real and the imaginary parts of a complex number
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Quiz: Subtracting one complex number from another
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Practice: Equating real and imaginary parts to find two unknowns
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Spot My Mistake: Dividing one complex number by another using the conjugate
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Practice: The argument of a complex number in the second or third quadrant
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Explain Back: The locus of a complex number at a fixed distance from a point
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Quiz: Writing a complex number in polar form
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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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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
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Practice: Why complex roots of a real quadratic come in conjugate pairs
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