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VARVARA [1.3K]
3 years ago
6

Use Pascal's triangle to find the coefficient of the third term in the expansion of (a + b)2.

Mathematics
1 answer:
Alexxandr [17]3 years ago
4 0

Answer:

B

Step-by-step explanation:

(a+b)^2

using Pascal triangle

1 1

1 2 1

1 3 3 1

so the third term in the expansion of (a+b)^2

we use

1 2 1

a^2 + 2ab+b

hence the coefficient of third term is 1

option B is collect

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Here,

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