1,324 prompts matching "Why does completing the square work"
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Spot My Mistake: The factor theorem for a divisor of the form ax minus b
Act as my SS3 Further Mathematics tutor. Work a question on the factor theorem for a divis
Show All Working: Solving a cubic equation by factorisation
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Learn: The sum of the roots of a cubic read from its coefficients
You are my personal SS3 Further Mathematics tutor. Teach me the sum of the roots of a cubi
Practice: Finding the third root of a cubic when two are known
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Spot My Mistake: The relations between roots and coefficients for a quartic
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Show All Working: Three roots in arithmetic progression in a cubic
Act as my WAEC Further Mathematics examiner. I am in SS 3. Set me a question on three root
Learn: Solving a linear inequality, and reversing the sign on dividing by a negative
You are my personal SS3 Further Mathematics tutor. Teach me solving a linear inequality, a
Practice: Solving an inequality with the unknown in the denominator
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Spot My Mistake: Showing the solution of an inequality on a number line
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Show All Working: Solving a pair of simultaneous linear inequalities
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Learn: The meaning of n factorial, and how to evaluate it
You are my personal SS3 Further Mathematics tutor. Teach me the meaning of n factorial, an
Practice: Arrangements when some of the objects are identical
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Learn: The meaning of n choose r, and how to evaluate it
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Spot My Mistake: The identity that n choose r equals n choose n minus r
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Practice: The compound angle formula for cosine of A minus B
Act as my SS3 Further Mathematics tutor. Give me five practice questions on the compound a
Spot My Mistake: The double angle formula for sine
Act as my SS3 Further Mathematics tutor. Work a question on the double angle formula for s
Final Revision: Proving an identity by working on one side only
Act as my WAEC Further Mathematics coach in the last week before the paper. I am in SS 3.
Worked Example: Solving cos x equals a negative value, and finding both solutions
Act as my SS3 Further Mathematics tutor. Take me through one full worked example on solvin
Practice: Solving an equation of the form sin of 2x equals a given value
Act as my SS3 Further Mathematics tutor. Give me five practice questions on solving an equ
Learn: The shape, period and range of the sine curve
You are my personal SS3 Further Mathematics tutor. Teach me the shape, period and range of