IGCSE /Grade 10
Maths MCQ Based On Working with arithmetic sequences
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IGCSE Grade 10 Maths Working with arithmetic sequences
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The 25th term can be found using the formula: aₙ = a₁ + (n - 1)d.
use the formula for calculating the nth term
use the concept of common difference in arithmetic sequence and do some modifications.
use the concept of arithmetic sequence
We can find the common difference by subtracting the 9th term from the 10th term,
use the concept of common difference in arithmetic sequence.
use the common difference of arithmetic sequence.
The sum of the first 20 terms (Sₙ) can be calculated using the formula: Sₙ = (n/2)(2a₁ + (n - 1)d)
use the concept of common difference of arithmetic sequence.
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