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\nIs A Number In A Sequence\n

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\nIn this video we are going to look at how we work out whether a number is in sequence or not. We looked at finding the nth term rule, generating sequences from it and finding terms in a sequence from the nth term rule in part 1. Is 730 a...\nIn this video we are going to look at how we work out whether a number is in sequence or not. We looked at finding the nth term rule, generating sequences from it and finding terms in a sequence from the nth term rule in part 1. Is 730 a term in the sequence 3n + 11? 730 isn’t the term, so we cannot substitute it in for n. We have to make the nth term rule equal to 730. 3n + 11 = 730, and then solve for 'n'. n = 239.7. Because n has come out as a decimal place, it means 730 is not in the sequence. Looking at another example: Is 265 a term in the sequence 4n + 5? Again, solve for n by solving this equation: 4n + 5 = 265. n = 65. Because 65 is a whole number it means that 265 is in the sequence. 265 is the 65th term in the sequence.\n
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Resource Details

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Educator Rating
Not yet Rated
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Media Length
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1:53
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Grade
6th - Higher Ed
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Subjects
Math
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Media Type
Instructional Videos
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Source:
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\nFuseSchool - Global Education\n\n
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Date
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2017
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Language
English
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Audiences
For Teacher Use
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Fine Print: Educational Use
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Concepts

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questions, work, sequences
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maths, digital learning, online learning, learn maths, school maths, mathematics, gcse maths, high school maths, maths help, free online education, fuseschool, fuse school, number, algebra, linear sequences, nth term, nth term rule, term to term, rule, progression, arithmetic, sequence, term, part, find, generate, answer, question, decimal, video
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Best For: Explaining a topic
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