775 prompts matching "Checking a conjugate answer by multiplying back"
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Quiz: The compound angle formula for sine of A plus B
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Spot My Mistake: The double angle formula for sine
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WAEC Prep: The three forms of the double angle formula for cosine
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Quiz: Solving tan x equals a given value, and the period of the tangent
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Quiz: The tangent curve and its asymptotes
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Spot My Mistake: The effect of c in y equals sin x plus c
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WAEC Prep: A phase shift in y equals sin of x minus d
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Quiz: The gradient of the line through two points
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WAEC Prep: Proving two given lines parallel from their gradients
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Quiz: Finding the centre and the radius from the general equation
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Spot My Mistake: The equation of the tangent to a circle at a point on it
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WAEC Prep: The length of the tangent from an external point
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Quiz: The equation of the tangent to a parabola
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Spot My Mistake: The foci of an ellipse
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WAEC Prep: The hyperbola in standard form, and its asymptotes
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Quiz: The semi-interquartile range
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Spot My Mistake: The standard deviation of an ungrouped set of data
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WAEC Prep: The standard deviation of grouped data using an assumed mean
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Quiz: The principle of moments for a body in equilibrium
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Spot My Mistake: The point at which a loaded beam will tip about its support
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