Math, asked by tripathipalak23, 1 day ago

write coefficient of y in the expansion of (7-y)²

Answers

Answered by nitapingle1984

1

Answer:

y = 7 I am correct..?....

Answered by Devrupking

1

Answer:

-14 is coefficient of y in this equation.

Step-by-step explanation:

here, (7-y)^2=49+y^2-14y

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