755 prompts matching "What Cramer's rule gives when the system is inconsistent"
Showing only prompts that state their year. 35 more in this subject don't name one, so choose All years to see them.
Changing the subject when the variable appears twice
I am in SS 1. Teach me changing the subject of a formula where the required letter appears
Worked Example: Why the square root of a non-square whole number is irrational
Act as my SS1 Further Mathematics tutor. Take me through one full worked example on why th
Spot My Mistake: The decimal expansion of an irrational number, and why it never repeats
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Spot My Mistake: Dividing one surd by another
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Common Mistakes: Expanding the product of two surd brackets
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Spot My Mistake: Simplifying the denominator once the conjugate has been used
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Common Mistakes: Subtraction as an example of neither law
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Worked Example: Testing whether star distributes over plus
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Worked Example: Finding the identity element from a rule such as a*b = a + b - 3
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Common Mistakes: Checking an inverse by working the operation both ways
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Common Mistakes: Why the index laws need the bases to match
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Spot My Mistake: The logarithm of the base itself
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Spot My Mistake: Evaluating an expression using the laws of logarithms
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Spot My Mistake: A logarithm to base e, the natural logarithm
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Practice: Finding the twentieth term of a given arithmetic progression
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Spot My Mistake: The sum of an arithmetic progression with a negative common difference
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Common Mistakes: Proving the sum formula by pairing the terms
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Practice: Finding the eighth term of a given geometric progression
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Common Mistakes: A bouncing ball problem, and the total distance travelled
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