1,236 prompts matching "Expressing root 50 as a multiple of root 2"
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Practice: Factorising a cubic completely once one factor is known
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Explain Back: Finding an unknown coefficient given that a stated factor divides the polynomial
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WAEC Prep: Sketching a cubic from its factorised form
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Learn: Solving a linear inequality, and reversing the sign on dividing by a negative
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Worked Example: Solving a quadratic inequality by sketching the parabola
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Quiz: Solving a quadratic inequality using a sign table
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Practice: Solving an inequality with the unknown in the denominator
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Explain Back: Solving an inequality that involves a modulus
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WAEC Prep: Writing a solution set in interval notation
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Explain Back: Arrangements in which two particular objects must stay together
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Spot My Mistake: Arrangements in which two particular objects must be kept apart
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Worked Example: The difference between a permutation and a combination
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Practice: Choosing a committee that must contain one particular person
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Spot My Mistake: The identity that n choose r equals n choose n minus r
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Learn: The Pythagorean identity, sin squared plus cos squared equals one
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Worked Example: The identities for one plus tan squared and one plus cot squared
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Spot My Mistake: The double angle formula for sine
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Learn: Solving sin x equals a given value between 0 and 360 degrees
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Worked Example: Solving cos x equals a negative value, and finding both solutions
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Explain Back: Solving a quadratic in sin x
I have just studied solving a quadratic in sin x in my SS3 Further Mathematics class. Let