1,334 prompts matching "find the coefficient of x^4 in the expansion of (1+3x)^7"
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Practice: The components of a vector given its magnitude and direction
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WAEC Prep: The magnitude of a vector after multiplication by a scalar
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WAEC Prep: A vector of magnitude one in three dimensions
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WAEC Prep: The magnitude of a two-dimensional vector
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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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WAEC Prep: Using a unit vector to write a force of given size
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Practice: A vector of stated magnitude in a given direction
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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WAEC Prep: The parallelogram law of vector addition
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Worked Example: The triangle law of vector addition
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WAEC Prep: The dot product of a vector with itself
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Learn: The angle between a vector and one of the axes
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WAEC Prep: Why the square root of a negative number needs i
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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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WAEC Prep: The conjugate of a product of two complex numbers
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WAEC Prep: The conjugate of a complex number, and how it is written
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Quiz: The product of a complex number and its conjugate
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