In any obtuse triangle, the square of the side oppo- site vne obtuse angle is equal to the sum of the squares of the other two sides increased by twice the product of one of these sides and the projection of the other side upon it. a

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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In any obtuse triangle, the square of the side oppo-
site vne obtuse angle is equal to the sum of the squares of
the other two sides increased by twice the product of one
of these sides and the projection of the other side upon it.
a
Transcribed Image Text:In any obtuse triangle, the square of the side oppo- site vne obtuse angle is equal to the sum of the squares of the other two sides increased by twice the product of one of these sides and the projection of the other side upon it. a
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