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3 years ago

7

Find the value of the coefficient of

1 answer:

Korolek [52]3 years ago

7 0

The solution to the problem is as follows:
<span>
the genaral term is 5Cr(-1)^r 2^r x^(5-2r)
and so need 5-2r = -1 => r = 3
Coeff is then 5C3 (-1)^3 2^3 = -80
</span>
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Read 2 more answers