687 prompts matching "What a determinant of nought means for a 2 by 2 matrix"
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Simplifying a surd expression before squaring
I am in SS 1. I attempted an Additional Maths question on why it matters to simplify a sur
Listing elements of a set from a description
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Complement of a set within a universal set
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Finding n(A union B) using the formula
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Subsets of a given set
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Number of elements in a set from a Venn diagram region count
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Applying the sum to infinity formula when the ratio lies between minus one and one
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Solving for x when three terms are in arithmetic progression
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Finding which term of a sequence equals a given value
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Quiz me rapid-fire on nth term formulas
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Common student mistakes with progression formulas
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Explaining why sum to infinity only works for |r| < 1
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Distance formula with negative coordinates
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Equation of a line given gradient and one point
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Finding the point of intersection of two lines
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Equation of the perpendicular bisector of a segment
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Distance from a point to the centre of a circle
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Simultaneous equations of a line and the coordinate axes
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Finding an unknown coordinate using the gradient formula
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Equation of a line with a given y-intercept and passing through a point
I am in SS 1. I attempted an Additional Maths question on finding the equation of a straig