1,305 prompts matching "Surds that cannot be combined at all"
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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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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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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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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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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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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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Worked Example: The powers of i, and the cycle they follow
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Spot My Mistake: Deriving a multiple angle formula from de Moivre's theorem
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Quiz: Why the power rule fails for the integral of one over x
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Quiz: The time of flight of a projectile
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Practice: The range of a projectile on level ground
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