755 prompts matching "IGCSE Additional Maths Y11: Permutations of a set of digits without repetition —"
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Worked Example: Writing out the terms of a sequence from its nth term
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Show All Working: Deciding whether a given number is a term of a sequence
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Worked Example: Finding the common difference of an arithmetic progression
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WAEC Prep: A word problem about seats in the rows of a hall
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Show All Working: The sum of the terms lying between two given positions
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Worked Example: Finding the common ratio of a geometric progression
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Worked Example: Which form of the sum formula to use when r is less than one
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Show All Working: The sum to infinity of a geometric progression, and when it exists
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WAEC Prep: Showing the solution of a linear inequality on a number line
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Worked Example: The critical values of a quadratic inequality
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Show All Working: Writing a quadratic solution set in interval form
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Worked Example: Solving the equation modulus of x equals a
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Simplifying a fraction of two bracketed index terms
I am in SS 1. I'm going to explain simplifying a fraction of index expressions down to a s
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
Set-builder notation basics
I am in SS 1. I'm going to explain reading and writing sets using set-builder notation, su
Distributive law for sets
I am in SS 1. I attempted an Additional Maths question on the distributive law connecting
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 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,
Finding the number of terms in an arithmetic series
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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