Understanding the Law of Sines in Trigonometry
Explore the Law of Sines in trigonometry through explanations and examples for finding angles and sides in triangles. Learn the relationships between angles and sides using sin ratios and apply them to solve various trigonometric problems. Discover the applications of the Law of Sines in real-world scenarios.
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By: Christopher Catalogna and Nick Macomber 5.5: THE LAW OF 5.5: THE LAW OF SINES SINES
WELCOME TO THE LAW OF SINES http://www.youtube.com/watch?v=s46K3 ToFB2c
The Law of Sin In ANY triangle with angles A,B,C and opposite sides a,b,c the following is true Sin A = Sin B = Sin C a b c
Find a 40 10 30 Sin40 = Sin30 a 10 a = 10Sin40 Sin30 a = 12.855 a
Find b 50 b 62 Sin50 = Sin62 4 b b = 4Sin62 Sin50 b =4.610 4
Find B 54 15 Sin54 = SinB 13 15 SinB = 15sin54 13 B= sin-1(15sin54) 13 B 13 B = 68.984
Find B 30 7 Sin30 = SinB 6 7 SinB= 7Sin30 6 B = Sin-1(7Sin30) 6 B B=35.7 6
Recources Youtube Pre calc text book