2x-y-5+2(x-2y-1)=0
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 2x-y-5+ 2(x- 2y-1) = 0 represents incident rays and (3x- y+ 4)+ (x-2y+3) represent
reflected rays to an ellipse S = 0; where A, ueR. Point P(2, 4) is a point on S = 0, normal at
which meets major axis at N. If N divides line segment joining two focii in the ratio a : b (a, b are
co-primes) then a +b-15 is
63.
(1)
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