1,334 prompts matching "Expressing a rationalised answer in the form a root b over c"
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WAEC Prep: The hyperbola in standard form, and its asymptotes
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Spot my mistake: Applying the power rule to the integral of one over x
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Explain Back: The order of the answer when two matrices are multiplied
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Worked Example: Forming the determinant Dy by replacing the second column
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Explain Back: The binomial probability formula
I have just studied the binomial probability formula in my SS3 Further Mathematics class.
WAEC Prep: Simplifying the answer after using the quotient rule
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Last-minute WAEC Further Mathematics formula check
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Worked Example: The intersection of two overlapping sets
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Final Revision: Deciding whether a set under an operation forms a group
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Common Mistakes: Solving an equation in which the unknown sits under a root
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Explain Back: The range of values of k for which the roots are real
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Common Mistakes: Symmetric functions when the three roots of a cubic are involved
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Final Revision: Checking a symmetric-function answer by solving the equation outright
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Practice: Finding the third root of a cubic when two are known
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Final Revision: Checking that the roots found satisfy the original equation
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Final Revision: Counting the number plates or codes that can be formed under a rule
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Practice: The compound angle formula for cosine of A minus B
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Explain Back: The compound angle formula for tan of A plus B
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Practice: Solving an equation of the form sin of 2x equals a given value
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Worked Example: The midpoint formula applied to a given segment
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