Word Problems using trigonometry and bearings
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- เผยแพร่เมื่อ 15 ต.ค. 2024
- 👉 Learn how to solve the word problems with trigonometry. Word problems involving angles, including but not limited to: bearings, angle of elevations and depressions, triangles problems etc are solved using trigonometry. To be able to solve these problems it is important that you have a grasp of the major trigonometric identities, the Pythagoras rule, the sine rule and the cosine rule.
Just like every word problem, the key to solving a trigonometric word problem is understanding the problem, then represent the information in the problem geometrically (with a diagram). This will give you the full view of the known and the unknown information and also provides you with the best approach to solving the problem.
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I feel so lucky to be able to be in a time where this information is readily available and free, amazing. Thank you Brian!
An easier method to solve this :
1. Using cos rule to find distance from port to final point (use (180-15) to find the angle).
2. Now that you have the 3 sides of the triangle, use cos rule to find the angle, i.e the bearing of final point from the port (= answer).
I can’t learn from my math teacher so you are the only reason I’m passing. Thank you so much.
I have a trig final in an hour and this helped so much 😌
I wanted to try the SSS law of cosine on this to see if I could get anything and it didn't work at all for me so I think I'll stop trying to do things on my own and just follow what you did here, thank you
Thanks for your posting sir
said mohamed not a problem, happy to help
Sir pls can you help me with this question: A boat sails 150km on a bearing of 042° and then 250km due east . How far is the boat from the starting point
with what?
thank you for your help, i really appreciate it. i pass precal bc of u
Thank you for providing such wonderful videos sir
you are very welcome!
thank you so much! This really helped me :D
Could you please solve this :
An aircraft flies 500 km on a bearing of 100 and then 600km on a bearing of 160. Find the distance and bearing of the finishing point from the starting point.
I really like ur explanation.
Thank you so much for this it really helped me
Excelente. Uma verdadeira aula. 👍
Thanks so much sir
This guy 👑👑
Why didn’t you use cos rule?
so hard pls help me sir :/
Cand D are two observation posts on the same horizontal ground at the foot A of a vertical tower AB.the tower is 18m due north of D and 24m east of C.the angle of elevation of B from D is 35• .calculate to three s.f the height AB,distance CD,angle of elevation from C,bearing of C from D
I need some searious help sir
maselan
mapili
maarte
sigurista