748 prompts matching "Learn: What an unclosed polygon of forces tells you"
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Solving 4^x = 8^(x-1) by matching bases
I am in SS 1. I'm going to explain solving the equation 4^x = 8^(x-1) by writing both side
Solving 9^x x 3^(x+1) = 1
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Adding surds that need simplifying first
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Dividing surds using the quotient rule
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Simplifying nested surds
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Reviewing every surd rule before a test
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Drawing a two-set Venn diagram from data
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Finding a missing intersection from set sizes
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Equal sets versus equivalent sets
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Set operations exam question, multi-part
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Quiz me rapid-fire on set notation symbols
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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 common difference from given terms
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Finding the common ratio from given terms
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Recognising arithmetic vs geometric sequences
I am in SS 1. Teach me how to tell from a list of numbers whether a sequence is arithmetic
Solving for x when three terms are in arithmetic progression
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Deriving the geometric series sum formula
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Finding the first term or common difference from the sum formula
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Gradient from a linear equation
I am in SS 1. I'm going to explain finding the gradient and y-intercept of a line directly
Deciding if three points are collinear
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