1,045 prompts matching "Find the centre and radius from x^2+y^2-6x+8y-11=0"
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Solve the trigonometric equation tan(x) = -1, for 0 <= x <= 360
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Solve the trigonometric equation 3sin(x) - 1 = 0, for 0 <= x <= 360
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Solve the trigonometric equation cos^2(x) - sin^2(x) = 0.5, for 0 <= x <= 360
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Worked example: differentiate y = (2x-1)(x+3) after expanding it first
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Worked example: how many ways can a committee of 4 be chosen from 10 people
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Structured question: new equation with roots 1/alpha and 1/beta
I am in SS 2. Set me a multi-part question where I first find the sum and product of the r
Learn: Making the coefficient of x squared equal to one first
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Practice: Working through a quadratic by completing the square, step by step
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Learn: Deriving the quadratic formula by completing the square
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Quiz: A negative value of b in the quadratic formula
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Practice: Giving the roots correct to two decimal places
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Learn: The sum of the roots as minus b over a
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Learn: What makes an expression in the roots symmetric
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Quiz: The value of one over alpha squared plus one over beta squared
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Practice: The value of alpha to the fourth plus beta to the fourth
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Final Revision: Using a symmetric function to find an unknown coefficient
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Learn: Making one unknown the subject of the linear equation
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Learn: Forming the quadratic that decides where a line meets a curve
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Quiz: The condition for two points of intersection
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Practice: The condition for the line to be a tangent
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