1,334 prompts matching "The sum to infinity of a geometric progression, and when it exists"
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Worked example: solving simultaneous equations with matrices
I am in SS 3. Show me one fully worked example of using the inverse matrix method to solve
Spot my mistake in a Cramer's rule solution
I am in SS 3. I solved a pair of simultaneous equations using Cramer's rule but I'm not su
Spot my mistake finding a resultant force
I am in SS 3. I found the resultant of two forces using the cosine rule but I think I used
Spot my mistake integrating a polynomial
I am in SS 3. I integrated a polynomial but I think I forgot the constant of integration o
Show All Working: A three-set Venn diagram drawn from a subject survey
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Common Mistakes: Showing that intersection distributes over union
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Learn: Reading a binary operation defined by a formula such as a*b = a + b - ab
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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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Common Mistakes: A binary operation defined by arithmetic modulo n
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Spot My Mistake: Squaring a bracket that contains a surd
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Common Mistakes: Solving an exponential equation using logarithms
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Quiz: Forming a quadratic equation whose roots are given
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Common Mistakes: Proving that a quadratic expression is positive for every real x
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Quiz: Finding alpha cubed plus beta cubed
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Quiz: Solving a quadratic inequality using a sign table
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Spot My Mistake: Arrangements in which two particular objects must be kept apart
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Practice: Choosing a committee that must contain one particular person
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Spot My Mistake: Solving an equation by first applying a Pythagorean identity
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Common Mistakes: Identifying a conic from a general second-degree equation
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