A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
y=10cosx at the point (π/3,5), what is the derivative
anonymous
 4 years ago
y=10cosx at the point (π/3,5), what is the derivative

This Question is Closed

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2derivative of cos is sin > dy/dx = 10sin x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0how will i find these two also The slope of the tangent line is m1= . The equation of the tangent line is y= .

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2slope = dy/dx evaluated at some x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0im not familiar with that method. would you mind demonstrating it please?

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2what method? its just the rule, derivative of sin is cos derivative of cos is sin

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0cos/sin is the solution?

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2?? your answer will have 3 parts a) derivative, dy/dx b) slope of tangent line, take dy/dx plug in x=pi/3 c) equation of tangent line, use slope and find y_intercept

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i dont understand how to do any of those. im working ahead on my homework b/c im going to busy with other things. so my teacher hasnt cover those yet and i am clueless. can you help me out please?

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2i already gave you the derivative, now just plug in pi/3 for x to get slope

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2yep...now use unit circle or calculator to find out what sin(pi/3) is

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.060degrees (1/2,sqrt3/2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0what do i do with those numbers

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2which one refers to sin

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2cos() > similar to x coord sin() > similar to y coord good so slope is 5sqrt(3)

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2y = mx+b m = 5sqrt3 (x,y) = (pi/3,5) find b

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0wait, i didnt mention that my homework software was satisfied with 10sinsqrt(3) as the slope

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2you mean...10sin(pi/3)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0my homework software accepted that

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2ok, same thing...you can interchange sqrt3/2 and sin(pi/3) because they are equal y = mx+b b = y  mx b = 5 (10sin(pi/3)*pi/3)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok thanks now i have to do slope and tangent line for m2

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2m2?? haha, same function different point

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0my software didnt accept the previous answer

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2what did you put in? did you enter it as y=mx+b form

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i entered it in this form 5 (10sin(pi/3)*pi/3)

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2well what does that number represent ?

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2i was trying to help you, i didn't give you the final answer

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.05 (10sin(pi/3)*pi/3) i got 5+10sin(pi/3)pi/3

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2not done yet...what did you just solve for? what answer are they looking for..."equation of tangent line"

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the line that runs diagonally and only touches a parabola on its sides

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2yes thats definition of tangent line. equation of tangent line is : y = mx+b so answer must be in that form: slope*x + y_intercept

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0our slope is 10sin(pi/3) and yint is 5 right?

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2y = mx+b b = y  mx m = 10sin(pi/3) (x,y) = (pi/3,5) b = 5 (10sin(pi/3)*pi/3)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i dont see how it isnt. you have m=10sin(pi/3) and y=5

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2the y_coord of the point is 5. don't confuse that with y_intercept, where line crosses yaxis we represent y_intercept as b

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0im not sure how you solve for b here

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2b = y  mx b = 5 (10sin(pi/3)*pi/3)

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2really? after multiplying by pi....or did you round it to 45

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0my calc was in radians mode

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2yeah thats what you want you could probably leave it as: b= 5+10(pi/3)*sin(pi/3),

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ahh i didnt distribute the negative outside the parantheisis

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2enter the equation of tangent line y = ?

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2http://www.wolframalpha.com/input/?i=y+%3D+10cos%28x%29+find+tangent+line+at+x%3Dpi%2F3 here is a nice reference to check your answers

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok thanks m2, do find the derivative of the derivative of m1

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2i dunno what they mean by m2

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2is their another function, or another point ?? does it look like dy^2/dx

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The slope of the normal line is m2 The equation of the normal line is y

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2oh ok, so m1 refers to tangent line m2 refers to normal line which is perpendicular to tangent line at point (pi/3, 5)

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2this will be easier for perpendicular lines: m1*m2 = 1 m2 = 1/m1

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2Then find equation of normal line same way solve for y_intercept b = y  m2*x

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2http://www.wolframalpha.com/input/?i=y+%3D+10cos%28x%29+find+normal+line+at+x%3Dpi%2F3

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0what is that link for?

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.2your welcome link is to check your answer
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.