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How do u work out Trigonometry

I Dont understand the cosine sine tangent
adjacent PLEASE TEACH ME
no websites

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Reply 1
Avatar for davros
davros
16
Original post by BrunoBear
I Dont understand the cosine sine tangent
adjacent PLEASE TEACH ME
no websites


What's your background?

Are you a student in a UK school?

Do you not have a teacher or a textbook?
Reply 2
Avatar for BrunoBear
BrunoBear
OP
Original post by davros
What's your background?

Are you a student in a UK school?

Do you not have a teacher or a textbook?


Just teach me quick
I understand most of it
Do you know SOH CAH TOA ?
Reply 4
Avatar for Notnek
Notnek
21
Original post by BrunoBear
Just teach me quick
I understand most of it

So you understand most of it. What don't you understand? Can you post an example question that you're struggling with?

There's no point getting taught the whole topic if you understand most of it. Plus this forum is not really designed for students to have topics taught to them.
It would be helpful if you could give us an example of the type of question you're stuck on
Reply 6
Avatar for BrunoBear
BrunoBear
OP
Original post by Old_Simon
Do you know SOH CAH TOA ?


opposite over hypotenuse?
adjacent over hypotenuse?
opposite over adjacent?
Original post by BrunoBear
opposite over hypotenuse?
adjacent over hypotenuse?
opposite over adjacent?

Yes. Good. Well that is it.

What else do you need to know?
Reply 8
Avatar for Notnek
Notnek
21
Original post by BrunoBear
Just teach me quick
I understand most of it

Can you do this question?

Question1.GIF
Original post by notnek
Can you do this question?




lol
Reply 10
Avatar for tal_08
tal_08
9
the sides of the triangle:
1. Hypotenuse : the longest side, opposite right angle.
2. Adjacent: the side next to the missing angle [or the known angle {but not the right angle}- if you're trying to find a side length]
3. Opposite : the side opposite the missing angle [or the known angle {but not the right angle}- if you're trying to find a side length]

Sin(angle) = Opp/Hyp
Cos(angle) = adjacent/hyp
tan(ange) = opp/adjacent

{rearrange these equations to make any unknown the subject}
Reply 11
Avatar for BrunoBear
BrunoBear
OP
Original post by Marky Mark
lol

Nope how
Reply 12
Avatar for Notnek
Notnek
21
Original post by BrunoBear
Nope how

Well what does SOHCAHTOA mean?
Reply 13
Avatar for BrunoBear
BrunoBear
OP
Original post by tal_08
the sides of the triangle:
1. Hypotenuse : the longest side, opposite right angle.
2. Adjacent: the side next to the missing angle [or the known angle {but not the right angle}- if you're trying to find a side length]
3. Opposite : the side opposite the missing angle [or the known angle {but not the right angle}- if you're trying to find a side length]

Sin(angle) = Opp/Hyp
Cos(angle) = adjacent/hyp
tan(ange) = opp/adjacent

{rearrange these equations to make any unknown the subject}


Finally, Thats what i needed :smile:
Original post by BrunoBear
Just teach me quick
I understand most of it



Original post by BrunoBear
Nope how

That is the most basic of questions


Do you know which side is the hypotenuse?
Original post by BrunoBear
Finally, Thats what i needed :smile:


Well that is a relief

If you are doing any more maths I suggest that you buy a good text book
Reply 16
Avatar for Notnek
Notnek
21
Original post by BrunoBear
Finally, Thats what i needed :smile:

This diagram will also help then

TrigonometryMnemonic_1000.gif

O means opposite, a means adjacent and h means hypotenuse.
(edited 9 years ago)
Reply 17
Avatar for BrunoBear
BrunoBear
OP
Original post by notnek
Well what does SOHCAHTOA mean?


Already answered
Reply 18
Avatar for BrunoBear
BrunoBear
OP
Original post by TenOfThem
That is the most basic of questions


Do you know which side is the hypotenuse?


longest
Reply 19
Avatar for Notnek
Notnek
21
Original post by BrunoBear
Already answered

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