1,003 prompts matching "why a line tangent to a curve gives equal roots"
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Summarise complex numbers for quick revision
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Subscribe to unlock allSummarise measures of dispersion for quick revision
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Subscribe to unlock allSimplify the surd expression sqrt(72) + sqrt(18)
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Subscribe to unlock allSimplify the surd expression sqrt(50) - sqrt(8)
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Subscribe to unlock allSimplify the surd expression (3+sqrt2)(3-sqrt2)
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Subscribe to unlock allSimplify the surd expression 5/(1+sqrt3)
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Subscribe to unlock allSimplify the surd expression (2+sqrt5)^2
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Subscribe to unlock allSolve the trigonometric equation 2cos(x) = 1, for 0 <= x <= 360
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Subscribe to unlock allSolve the trigonometric equation sin(2x) = 0.5, for 0 <= x <= 360
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Subscribe to unlock allSolve the trigonometric equation tan(x) = -1, for 0 <= x <= 360
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Subscribe to unlock allSolve the trigonometric equation 3sin(x) - 1 = 0, for 0 <= x <= 360
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Subscribe to unlock allSolve the trigonometric equation cos^2(x) - sin^2(x) = 0.5, for 0 <= x <= 360
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Subscribe to unlock allWorked example: how many ways can 5 books be arranged on a shelf
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