If the coordinates of any two points ₁ and 2₂ are (x₁, y₁) and (x2, y2), respectively, then prove that 00₁ 00₂ cos(4Q₁00₂2)=x₁x₂ +y₁2, where O is the origin.
If the coordinates of any two points ₁ and 2₂ are (x₁, y₁) and (x2, y2), respectively, then prove that 00₁ 00₂ cos(4Q₁00₂2)=x₁x₂ +y₁2, where O is the origin.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:If the coordinates of any two points ₁ and 2₂ are
(x₁, y₁) and (x2, y2), respectively, then prove that
00₁ 00₂ cos(2Q₁00₂) = x₁x₂ +y₁2, where O is the origin.
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