1,043 prompts matching "Checking the determinant before attempting a 3 by 3 inverse"
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Worked example: find the inverse of [[2,1],[5,3]]
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Practice: Working through a quadratic by completing the square, step by step
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WAEC Prep: The minimum value of a quadratic found by completing the square
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WAEC Prep: Checking the sum and product against the solved roots
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Common Mistakes: Multiplying one polynomial by another
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WAEC Prep: Dividing by a factor of the form ax plus b
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Worked Example: The remainder on dividing by x minus 3
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Practice: The remainder on dividing by 2x minus 1
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Common Mistakes: Using the factor theorem before dividing
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Common Mistakes: Comparing two statements by their truth tables
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Explain Back: The inverse of a conditional
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Common Mistakes: Writing the converse, inverse and contrapositive of one statement
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IGCSE Additional Maths Y11: Proving an identity by working from the harder side — Explain It Back
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IGCSE Additional Maths Y11: An equation solved by the substitution t equals tan x — IGCSE Exam Practice
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IGCSE Additional Maths Y11: Checking that the solutions lie in the stated range — Common Mistakes
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IGCSE Additional Maths Y11: The notation dy by dx, and f dashed of x — Quiz Me
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Quiz me with five shor
IGCSE Additional Maths Y11: Finding stationary points by setting the derivative to nought — Worked Example
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Take me through one co
IGCSE Additional Maths Y11: Eliminating one variable by using the constraint — Worked Example
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Take me through one co
IGCSE Additional Maths Y11: Checking that the turning point is the one wanted — IGCSE Exam Practice
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Set me a past-paper-st
IGCSE Additional Maths Y11: An area found by splitting the region in two — Spot My Mistake
I am a Year 11 pupil taking Cambridge IGCSE Additional Mathematics. Work a question on an