1,326 prompts matching "Solve the trigonometric equation cos^2(x) - sin^2(x) = 0.5, for 0 <= x <= 360"
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Learn: The coordinates of a point 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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Learn: The unit vectors i, j and k
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WAEC Prep: The position vector of a point relative to the origin
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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: Adding three vectors in component form
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Learn: Subtracting one vector from another
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WAEC Prep: The dot product worked out from components
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WAEC Prep: Finding the angle between two vectors from their dot product
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Worked Example: Testing two vectors for perpendicularity
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Learn: The angle between a vector and one of the axes
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Practice: Deciding whether a point lies on a given line
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WAEC Prep: Three forces in equilibrium written as vectors
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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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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Quiz: The product of a complex number and its conjugate
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