Fibonacci's front door is 55" wide and 89” tall. He purchased a circular table that is 100 inches in diameter. Will the table fi
t through the front door?
1 answer:
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Option C:
The coefficient of is 40.
Solution:
Given expression:
Using binomial theorem:
Here
Substitute in the binomial formula, we get
Now to expand the summation, substitute i = 0, 1, 2, 3, 4 and 5.
Let us solve the term one by one.
Substitute these into the above expansion.
The coefficient of is 40.
Option C is the correct answer.