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givi [52]
4 years ago
10

Expand (1 + y) in ascending powers of y as far as the term in y2. .

Mathematics
1 answer:
kodGreya [7K]4 years ago
5 0

Answer:

1 + 2y + y²

Step-by-step explanation:

Suppose,we want to expand a given binomial of the form;

( 1 + y)ⁿ we will have

1 + ny + n(n - 1)y²/2! + n(n - 1)(n - 2)y³/3! + ....

hence:

( 1+y)² = 1 + 2y + 2(2-1)y²/2!

= 1 + 2y + y²

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