Difference between revisions of "1989 AIME Problems/Problem 8"
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== Problem == | == Problem == | ||
+ | Assume that <math>x_1,x_2,\ldots,x_7</math> are real numbers such that | ||
+ | <center><math>x_1+4x_2+9x_3+16x_4+25x_5+36x_6+49x_7=1^{}_{}</math></center> | ||
+ | <center><math>4x_1+9x_2+16x_3+25x_4+36x_5+49x_6+64x_7=12^{}_{}</math></center> | ||
+ | <center><math>9x_1+16x_2+25x_3+36x_4+49x_5+64x_6+81x_7=123^{}_{}</math></center> | ||
+ | |||
+ | Find the value of <math>16x_1+25x_2+36x_3+49x_4+64x_5+81x_6+100x_7^{}</math>. | ||
== Solution == | == Solution == | ||
+ | {{solution}} | ||
== See also == | == See also == | ||
+ | * [[1989 AIME Problems/Problem 9|Next Problem]] | ||
+ | * [[1989 AIME Problems/Problem 7|Previous Problem]] | ||
* [[1989 AIME Problems]] | * [[1989 AIME Problems]] |
Revision as of 22:06, 24 February 2007
Problem
Assume that are real numbers such that
Find the value of .
Solution
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