17. In the acute - angled triangle OPQ, the altitude OR makes angles A and B with OP and OQ. Show by means of areas that if OP-q, OQ=p, OR=r: p.q.Sin(A+B) = q.r.SinA + p.r. SinB.
17. In the acute - angled triangle OPQ, the altitude OR makes angles A and B with OP and OQ. Show by means of areas that if OP-q, OQ=p, OR=r: p.q.Sin(A+B) = q.r.SinA + p.r. SinB.
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:17. In the acute - angled triangle OPQ, the altitude OR makes angles A and
B with OP and OQ. Show by means of areas that if OP-q, OQ=p,
OR=r: p.q.Sin(A+B) = q.r.SinA +p.r. SinB.
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