E 289 (67) -l, m
Yu. N. Makarychev et al "Algebra. Textbook for the 8th form of general education institutions »ISBN 5-09-007075-Х.
A task:
Given:

Decision:
1.
=
=
=
= 29.291
=
=
=
= 29.291
Answer: 29,291 .
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