Geometry trig

[rachelmaddie]

Sin = opp/hyp
Cos = adj/hyp
Tan = opp/adj
Sin^1 4 root 2/9
I’m having trouble with calculations.

 

[rachelmaddie]

Sin = opp/hyp
Cos = adj/hyp
Tan = opp/adj
Sin^1 4 root 2/9
I’m having trouble with calculations.

Should I first simplify 4 root 2?

 

[lev888]

Should I first simplify 4 root 2?

How would you simplify it?

 

[Deleted member 4993]

Should I first simplify 4 root 2?

Which problem are you trying to solve?

 

[rachelmaddie]

Which problem are you trying to solve?

4/2?

 

[Deleted member 4993]

4/2?

Do you think you have answered my question posed in the post#4 of this thread?

 

[Harry_the_cat]

Should I first simplify 4 root 2?

Sin = opp/hyp
Cos = adj/hyp
Tan = opp/adj
Sin^1 4 root 2/9
I’m having trouble with calculations.

\(\displaystyle \frac{4\sqrt2}{9}\) is the answer to sin M in Q12.

 

[rachelmaddie]

\(\displaystyle \frac{4\sqrt2}{9}\) is the answer to sin M in Q12.

It’s not simplified.

 

[Deleted member 4993]

It’s not simplified.

How do you know that?

 

[Harry_the_cat]

Yes it is. You can't simplify it further. What answer does your book give?

 

[rachelmaddie]

Yes it is. You can't simplify it further. What answer does your book give?

Oh I’m sorry. I thought that I had to calculate sin^-1 4 root 2 over 9

 

[Harry_the_cat]

If you did that you would find angle M. To do that you would need to use a calculator.

 

[rachelmaddie]

If you did that you would find angle M. To do that you would need to use a calculator.

Okay and there not asking to find the angle

 

[rachelmaddie]

Okay and there not asking to find the angle

So it would be sin 4 root 2 over 9

 

[pka]

So it would be sin 4 root 2 over 9

To rachelmaddie, If you have never had any course in trigonometry then you have no reason trying these.
\(\displaystyle \sin(\angle M)=\frac{4\sqrt 2}{9}\).

 

[rachelmaddie]

To rachelmaddie, If you have never had any course in trigonometry then you have no reason trying these.
\(\displaystyle \sin(\angle M)=\frac{4\sqrt 2}{9}\).

My only form of learning is online videos and the textbook but I’ve been taking notes and practicing with these problems for my class. I’m having a hard time understanding the radicals.

 

[rachelmaddie]

So what would I do for #13?

 

[Deleted member 4993]

So what would I do for #13?\

What is #13 asking you to do?

 

[rachelmaddie]

W

What is #13 asking you to do?

write the ratio for tan M

 

[Harry_the_cat]

Have a go at #13 and we'll see if you are correct.