1,320 prompts matching "IGCSE Additional Maths Y11: The identity one plus tan squared equals sec squared"
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Common Mistakes: Symmetric functions when the three roots of a cubic are involved
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Practice: Finding the third root of a cubic when two are known
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Practice: Solving an inequality with the unknown in the denominator
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Common Mistakes: The range of values of x for which an expression stays positive
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Practice: Arrangements when some of the objects are identical
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Show All Working: Arrangements of the letters of a given word
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Common Mistakes: Arrangements restricted at the first or the last place
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WAEC Prep: Pascal's triangle and the combination numbers in it
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Show All Working: Counting the handshakes, or the lines joining n points
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Practice: The compound angle formula for cosine of A minus B
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WAEC Prep: The three forms of the double angle formula for cosine
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Show All Working: The half angle formulae and the t-substitution
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Practice: Solving an equation of the form sin of 2x equals a given value
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Common Mistakes: Giving the general solution of a trigonometric equation
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Practice: The effect of a in y equals a sin x
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Show All Working: Reading the solutions of a trigonometric equation off a graph
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Common Mistakes: Sketching two trigonometric curves on the same axes to find where they meet
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Practice: The equation of a line through a point with a given gradient
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WAEC Prep: Proving two given lines parallel from their gradients
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Show All Working: Proving two given lines perpendicular from their gradients
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