1,326 prompts matching "What the formula gives when the discriminant is negative"
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Worked Example: The intersection of two overlapping sets
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Worked Example: The sum of the products of the roots of a cubic taken two at a time
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Worked Example: Solving a quadratic inequality by sketching the parabola
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Worked Example: The number of arrangements of n different objects in a row
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Worked Example: The difference between a permutation and a combination
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Worked Example: The identities for one plus tan squared and one plus cot squared
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Worked Example: The shape, period and range of the cosine curve
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Worked Example: The parametric form of a point on a parabola
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Worked Example: The interquartile range of a set of ordered data
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Worked Example: The common acceleration of two connected particles
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Worked Example: The normal reaction on a body resting on a smooth incline
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Worked Example: The acceleration of a body moving round a circle at constant speed
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Worked Example: The amplitude, period and frequency of a simple harmonic motion
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Worked Example: The tension in a stretched elastic string
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Spot my mistake in a Pascal's row truth table
I am in SS 3. I will show you my attempt at a truth table for a compound proposition with
Spot my mistake: finding a stationary point
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Solve a quadratic equation with complex roots #2
I am in SS 3. Give me a quadratic equation problem where I need to solve x^2 - 2x + 5 = 0
Order of matrices before multiplying
I am in SS 3. Quiz me on when two matrices can be multiplied based on their orders. Give m
Solve a quadratic equation with complex roots #1
I am in SS 3. Give me a quadratic equation problem where I need to solve x^2 + 4 = 0 for c
Solve a quadratic equation with complex roots #3
I am in SS 3. Give me a quadratic equation problem where I need to solve 2x^2 + x + 3 = 0