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Noelaamaro
Group Title
I'm having trouble solving this question, can anyone help me?
Find the equation of the tangent line at the given point.
f(x)=csc(x) (8, csc(8))
 one year ago
 one year ago
Noelaamaro Group Title
I'm having trouble solving this question, can anyone help me? Find the equation of the tangent line at the given point. f(x)=csc(x) (8, csc(8))
 one year ago
 one year ago

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Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
Find the first derivative of your function. Then evaluate at your point.
 one year ago

Noelaamaro Group TitleBest ResponseYou've already chosen the best response.0
I have my derivative = csc(x) cot(x) Am I on the right track?
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
Yes. cotxcscx
 one year ago

Noelaamaro Group TitleBest ResponseYou've already chosen the best response.0
Then plug in the x=8 and ill get the yintercept right?
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
Use point slope form.
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
\[yy_{1}=m(xx_{1})\]
 one year ago

Noelaamaro Group TitleBest ResponseYou've already chosen the best response.0
I've got y=xcsc(x)cot(x)+8csc(x)cot(x)+csc(8) This doesn't seem right
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
No, you need to find the slope at your point first. Do not plug any values into the form yet.
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
\[f(x)=cscx\]
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
\[f'(x)=cotxcscx\]
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
your point is (8, csc(8))...So..
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
\[f'(8)= \cot(8)\csc(8)\]
 one year ago

Noelaamaro Group TitleBest ResponseYou've already chosen the best response.0
Sorry your last four messages say math processing error, can you input it again please
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
\[yy_{1}= (\cot(8)\csc(8))(xx_{1})\]
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
f(x)=cscx f′(x)=−cotxcscx your point is (8, csc(8))...So.. f′(8)=−cot(8)csc(8) y−y1=(−cot(8)csc(8))(x−x1)
 one year ago

Brittni0605 Group TitleBest ResponseYou've already chosen the best response.1
ycsc(8)=(cot(8)csc(8))(x8) y=(cot(8)csc(8)x)+8cot(8)csc(8)+csc(8)
 one year ago

Noelaamaro Group TitleBest ResponseYou've already chosen the best response.0
Sorry I was working it out, nice to see I'm on the right track though so far
 one year ago

Noelaamaro Group TitleBest ResponseYou've already chosen the best response.0
I've got y=51.12604x+416.19363
 one year ago

Noelaamaro Group TitleBest ResponseYou've already chosen the best response.0
Thanks!
 one year ago

robtobey Group TitleBest ResponseYou've already chosen the best response.0
A solution and plots using the Mathematica 9 Home Edition program is attached.
 one year ago
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