1,043 prompts matching "A binary operation that is ordinary addition in disguise"
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Spot my mistake finding a matrix inverse
Act as my SS2 Further Maths tutor. I found the inverse of a 2x2 matrix but I think I made
Spot my mistake finding a vector's magnitude
Act as my SS2 Further Maths tutor. I calculated the magnitude of a vector but I think I ma
Spot my mistake calculating standard deviation
Act as my SS2 Further Maths tutor. I calculated the standard deviation of a data set but I
Spot My Mistake: Completing the square when the roots are not real
Act as my SS2 Further Mathematics tutor. Work a question on completing the square when the
Final Revision: Why completing the square always works
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Final Revision: A word problem solved with the quadratic formula
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Final Revision: Using a symmetric function to find an unknown coefficient
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Spot My Mistake: A pair with equal roots, meaning one solution only
Act as my SS2 Further Mathematics tutor. Work a question on a pair with equal roots, meani
Final Revision: Checking both solutions in both equations
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Final Revision: A word problem about a line and a parabola
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Spot My Mistake: A polynomial written in descending powers
Act as my SS2 Further Mathematics tutor. Work a question on a polynomial written in descen
Final Revision: The degree of the product of two polynomials
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Spot My Mistake: Finding two coefficients from two remainder conditions
Act as my SS2 Further Mathematics tutor. Work a question on finding two coefficients from
Final Revision: A factor theorem question set in the WAEC style
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Final Revision: Checking a root of a cubic by substitution
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Final Revision: A compound proposition built from three simple ones
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Spot My Mistake: Building a truth table column by column
Act as my SS2 Further Mathematics tutor. Work a question on building a truth table column
Final Revision: The exclusive sense of or, and its truth table
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Final Revision: A conditional statement set in an everyday situation
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Spot My Mistake: De Morgan's laws in logic
Act as my SS2 Further Mathematics tutor. Work a question on de Morgan's laws in logic with