737 prompts matching "Structured question: quadratic formula question with a negative discriminant"
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Estimating the value of a surd
I am in SS 1. I'm going to explain estimating the approximate value of a surd such as root
Distinguishing rational and irrational numbers
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Rationalising the denominator when it's a surd minus a surd
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Simplifying nested surds
I am in SS 1. I'm going to explain simplifying an expression containing a surd within a su
Explaining why we rationalise denominators
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Simplifying a surd expression before squaring
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Drawing a two-set Venn diagram from data
I am in SS 1. I attempted an Additional Maths question on drawing a Venn diagram for two o
Proper subsets versus subsets
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Working backwards from Venn diagram totals
I am in SS 1. I'm going to explain a Venn diagram question where I am given some regions a
Interpreting neither-nor in a Venn diagram problem
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Set problem leading to a linear equation
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Finding the nth term of an arithmetic sequence
I am in SS 1. I'm going to explain finding the nth term formula of an arithmetic sequence,
Sum of the first n terms of a geometric series
I am in SS 1. I'm going to explain using the formula Sn = a(r^n - 1)/(r - 1) to find the s
Deciding whether a geometric series converges
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Solving for x when three terms are in arithmetic progression
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Recurring decimals as an infinite geometric series
I am in SS 1. I'm going to explain how a recurring decimal, such as 0.777..., can be writt
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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Area of a triangle from three coordinates
I am in SS 1. I'm going to explain finding the area of a triangle given the coordinates of