falconwiren7580 falconwiren7580

01-03-2018
Mathematics

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Find a second-degree polynomial p such that p(1) = 5, p'(1) = 7, and p''(1) = 10.

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sqdancefan sqdancefan

02-03-2018

When p(x) = ax^2 +bx +c
p'(x) = 2ax +b
p''(x) = 2a

You require
.. 2a = 10
.. 2a +b = 7
.. a + b + c = 5

Thus a=5, b=-3, c=3, and
.. p(x) = 5x^2 -3x +3

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