1,206 prompts matching "IGCSE Additional Maths Y11: What a stationary point is — Teach Me"
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Explain-back: equilibrium of a rigid body
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Worked example: finding the matrix of cofactors and the adjugate
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Worked example: finding the argument in the correct quadrant
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Worked Example: The intersection of two overlapping sets
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Quiz: The complement of a set within a stated universal set
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Practice: The difference of two sets, A minus B
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Quiz: Testing a binary operation for commutativity
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Practice: Testing a binary operation for associativity
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Worked Example: Collecting like surds in a single sum
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Quiz: Multiplying two surds and simplifying the result
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Worked Example: Simplifying an expression carrying both a negative and a fractional index
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Quiz: Solving an index equation by writing both sides to the same base
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Practice: Converting between index form and logarithm form
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Quiz: Forming a quadratic equation whose roots are given
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Practice: The condition for a quadratic equation to have equal roots
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Worked Example: Finding one over alpha plus one over beta
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Quiz: Finding alpha cubed plus beta cubed
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Practice: Finding alpha minus beta from the sum and the product
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Worked Example: Evaluating a polynomial by substitution
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Worked Example: The sum of the products of the roots of a cubic taken two at a time
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