363 prompts matching "Checking a Cramer's rule solution by substituting back"
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Three-set Venn diagram word problem
I am in SS 1. Show me a fully worked Cambridge/Additional Maths style solution to a questi
Proper subsets versus subsets
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Logical reasoning with 'and' versus 'or' in sets
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Number of elements in a set from a Venn diagram region count
I am in SS 1. I'm going to explain counting n(A only), n(B only) and n(A and B) separately
Interpreting neither-nor in a Venn diagram problem
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Set problem leading to a linear equation
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Logical reasoning puzzle solved using sets
I am in SS 1. I'm going to explain a short logical reasoning puzzle about groups of people
Finding the number of terms in an arithmetic series
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Finding a term given the sum of a series
I am in SS 1. I'm going to explain finding a specific term of a sequence by first finding
Mixed sequence exam question, arithmetic and geometric
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WAEC-style past question on geometric progressions
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Finding a sequence's sum between two term numbers
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Midpoint of a line segment
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Equation of a line through two given points
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Length of a line segment on a graph
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Coordinate geometry proof: isosceles triangle
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Coordinate geometry exam question: quadrilateral vertices
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Distinguishing gradient sign: positive, negative, zero, undefined
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Common mistakes in coordinate geometry formulas
Teach me the most common mistakes SS1 students make with coordinate geometry formulas, suc
Coordinate geometry applied to a triangle's area check
I am in SS 1. Give me a Cambridge IGCSE Additional Mathematics style exam question on chec