which of the folloaing equalities is A Sin A sinB = -0.S (CoS(At B)- Cos (A-B)) BCOSA-COSB = 2 Sin o-s (A+B) * sin o5(A-B) coS 2A = 2 Ccos²A-1 O cos (A-B)= OSA COS B+sin A sin8 %3D
which of the folloaing equalities is A Sin A sinB = -0.S (CoS(At B)- Cos (A-B)) BCOSA-COSB = 2 Sin o-s (A+B) * sin o5(A-B) coS 2A = 2 Ccos²A-1 O cos (A-B)= OSA COS B+sin A sin8 %3D
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:which of the follooing equalities is
A sin A sinB = - 0-5 (co(A+B)- Cos (A-B))
BCOSA-COSB = 2 Sin o.s (A +B) * sin o5(A-B)
cos 2A = 2 cos²A-1
DCos (A-B) = OSA COS B+sin A sinB
wrong?
%3D
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