Sequences and Series
Savings that grow by a fixed sum and investments that multiply by a fixed factor are two kinds of growth. Chapter 8, Sequences and Series, of the NCERT Mathematics textbook for Class 11 studies arithmetic and geometric progressions side by side. You will write general terms, sum the first n terms of each, insert arithmetic and geometric means between two numbers, relate the two means by inequality, and sum special series of squares and cubes through worked examples.
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