
To calculate: To plot the point in rectangular coordinates and find two setsof polar representations of the point, using 0<θ<2π

Answer to Problem 37E
The rectangular coordinates of point on the graph is plotted and two sets of polar points are (√6,5π4),(3√6,π4)
Explanation of Solution
Given information: Rectangularis (−√3,−√3)
Formula Used:
Polar coordinate of a point (x,y) is given as
(r,θ)
Where,
r=√x2+y2
θ=arctan(|yx|)
If both x,y>0 , then θ=α
If x<0,y>0 , then θ=π−α
If x,y<0 , then θ=π+α
If x>0,y<0 , then θ=−α
Point (r,θ) can be represented as
(r,θ)=(r,θ±2nπ)
Or
(r,θ)=(−r,θ±(2n+1)π)
Calculation:
Rectangular point is given as
(−√3,−√3)
Plotting the rectangular coordinates on the graph
Converting rectangular coordinates into polar coordinates:
Polar coordinate of a point (x,y) is given as
(r,θ)
Calculating the value of r :
r=√(−√3)2+(−√3)2r=√3+3r=√6r=√6
Calculating the value of θ :
Since x,y<0 , then θ=π+α
θ=πarctan(|−√3−√3|)θ=π+π4θ=5π4
Thus, polar coordinate of point is (√6,5π4)
Now, let’s find another set polar representations of the point, where 0<θ<2π
Point (r,θ) can be represented as
(r,θ)=(−r,θ±(2n+1)π)
Here,
r=√6θ=5π4
Substituting the values in above representations, another representation of given point are:
(−√6,5π4−π)=(−√6,π4)
Conclusion:
Hence, rectangular coordinates of point on the graph is plotted and twosets of polar points are (√6,5π4),(3√6,π4)
Chapter 9 Solutions
Precalculus with Limits: A Graphing Approach
- What is the particular solution to the differential equation y′′ + y = 1/cos t ?arrow_forwardWhich of the following is the general solution to y′′ + 4y = e^2t + 12 sin(2t) ?A. y(t) = c1 cos(2t) + c2 sin(2t) + 1/8 e^2t − 3t cos(2t)B. y(t) = c1e^2t + c2e^−2t + 1/4 te^2t − 3t cos(2t)C. y(t) = c1 + c2e^−4t + 1/12 te^2t − 3t cos(2t)D. y(t) = c1 cos(2t) + c2 sin(2t) + 1/8 e^2t + 3 sin(2t)E. None of the above. Please include all steps! Thank you!arrow_forwardShow that i cote +1 = cosec 20 tan 20+1 = sec² O २ cos² + sin 20 = 1 using pythagon's theoremarrow_forward
- Find the general solution to the differential equationarrow_forwardcharity savings Budget for May travel food Peter earned $700 during May. The graph shows how the money was used. What fraction was clothes? O Search Submit clothes leisurearrow_forwardExercise 11.3 A slope field is given for the equation y' = 4y+4. (a) Sketch the particular solution that corresponds to y(0) = −2 (b) Find the constant solution (c) For what initial conditions y(0) is the solution increasing? (d) For what initial conditions y(0) is the solution decreasing? (e) Verify these results using only the differential equation y' = 4y+4.arrow_forward
- Aphids are discovered in a pear orchard. The Department of Agriculture has determined that the population of aphids t hours after the orchard has been sprayed is approximated by N(t)=1800−3tln(0.17t)+t where 0<t≤1000. Step 1 of 2: Find N(63). Round to the nearest whole number.arrow_forward3. [-/3 Points] DETAILS MY NOTES SCALCET8 7.4.032. ASK YOUR TEACHER PRACTICE ANOTHER Evaluate the integral. X + 4x + 13 Need Help? Read It SUBMIT ANSWER dxarrow_forwardEvaluate the limit, and show your answer to 4 decimals if necessary. Iz² - y²z lim (x,y,z)>(9,6,4) xyz 1 -arrow_forward
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning





