237 prompts matching "Explain-back: complex conjugates"
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Worked example: reading the solutions as points of intersection
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Why simultaneous linear-quadratic systems can have two solutions
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Divide a polynomial by a quadratic
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Spot my mistake identifying a compound statement symbol
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Teach me the truth table for negation
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Teach me the truth table for conjunction
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Teach me the truth table for disjunction
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Worked example: truth table for a compound statement
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Teach me conditionals versus tautologies
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Teach me combinations
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Spot my mistake in a permutation problem
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Teach me rationalising the denominator
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Worked example: rationalising a binomial surd denominator
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Worked example: solving an equation with logarithms to the same base
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Teach me finding the determinant of a 2x2 matrix
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Solve the trigonometric equation 2cos(x) = 1, for 0 <= x <= 360
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Solve the trigonometric equation sin(2x) = 0.5, for 0 <= x <= 360
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Solve the trigonometric equation tan(x) = -1, for 0 <= x <= 360
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Solve the trigonometric equation 3sin(x) - 1 = 0, for 0 <= x <= 360
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Solve the trigonometric equation cos^2(x) - sin^2(x) = 0.5, for 0 <= x <= 360
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