Arithmetic Progressions
NIOS · Class 10 · Maths
All formulas from Arithmetic Progressions in NIOS Class 10 Maths. Key equations, constants, and identities for board exam preparation.
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Basic Definitions and Identification
Core Formulas
tₙ = a + (n-1)d
d = tₙ₊₁ - tₙ
Sₙ = n/2[2a + (n-1)d]
Sₙ = n/2(a + l)
l = a + (n-1)d
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Special Cases and Applications
Sum of first n natural numbers = n(n+1)/2
Sum of first n odd numbers = n²
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