1,186 prompts matching "IGCSE Additional Maths Y10: A simultaneous pair with no real solution — Spot My"
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Explain Back: Solving two simultaneous equations by multiplying by the inverse
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Practice: Comparing the inverse method with elimination for three equations
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WAEC Prep: The weight of a body on the moon compared with on earth
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WAEC Prep: The angle the resultant makes with the larger of two forces
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Practice: Choosing the most convenient pair of directions to resolve along
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Worked Example: Marking the weight, the normal reaction and the friction on a diagram
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WAEC Prep: The triangle of forces used together with the cosine rule
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Practice: Why the forces must sum to nought in two perpendicular directions
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Explain Back: Why the total moment about any point must be nought
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Practice: Finding an unknown force from a closed polygon
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Worked Example: Finding a particular term of a binomial expansion
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Practice: Using a binomial expansion to approximate a number
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Explain Back: The binomial probability formula
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Worked Example: The probability of no events at all in a Poisson distribution
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Practice: The variance of a binomial distribution as npq
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Practice: Using the normal tables when the z-score is negative
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Quiz: The direction of a vector as an angle with the x-axis
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WAEC Prep: The dot product of a vector with itself
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Practice: Equating real and imaginary parts to find two unknowns
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WAEC Prep: De Moivre's theorem used with a negative index
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