26 Answered Questions for the topic Polar coordinates

08/19/20

#### Write the point (3, pi/6) with the following conditions: a. r < 0, theta > 0 b. r > 0, theta < 0 c. r > 0, theta > 0

Write the point (3, pi/6) with the following conditions: a. r < 0, theta > 0 b. r > 0, theta < 0 c. r > 0, theta > 0

11/22/19

#### Plot the Polar Coordinates

Plot the Points with polar coordinates (-6,-π/6) and (2, 3π/2). Plot on the Unit Circle.Small320×320Please help! I'm just not understanding this. Please explain! Thank you!

04/25/19

#### Precalculus Polar Coordinates-- PLEASE Help!!

Find the equation in polar coordinates of the line through the origin with slope 1/7 . θ=Any help would be really appreciated!!!!!!!! I am very confused by the concept!

04/02/18

#### Cartesian Unit Vector to Polar Unit Vector

I'm having trouble understanding the following equation conceptually.
Where....R= Polar unit vectorI, J= Cartesian unit vectors
R=cos(Θ)I+sin(Θ)J
Please explain how this equation can be...
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03/03/18

#### Which limits do you use when finding arclength of a rose?

What is the arclength of r=6sin(3θ)?
Given the formula Lpolar= ∫√[r^2+(dr/dθ)^2]dθ I can find the arc length using the r stated above and r'=18cos(3θ)
Given that one petal is between θ of 0 and...
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06/02/17

#### Trig Question: What is the polar representation of z = 6i?

What is the polar representation of z = 6i?
a. 6cis ib. 6 cis πc. π cis 6d. 6cis (π/2)e. 36
I cant seem to figure this one out

Polar Coordinates

05/22/17

#### change rectangular equations to polar equations

3xy=7
make sure its in polar equation

Polar Coordinates

05/22/17

#### change rectangular equations to polar equations

y^2=10x
make sure its in polar equations

Polar Coordinates

05/22/17

#### change rectangular equations to polar equations

y=-5
make sure its in polar equation!

Polar Coordinates Pre Calculus Honors

05/22/17

#### change polar equation to rectangular equations

r=7sin∅

Polar Coordinates Pre Calculus Honors

05/22/17

#### change polar equation to rectangular equations

r=-5csc∅

04/17/17

#### find another representation, (r, θ) for the point under the given conditions. (5, pi/2), r<0 and 0 < θ < 2pi

solve problem and please show steps

Polar Coordinates

01/13/17

#### How do I know whether to add 180° or 360° in finding my y value in working with polar coordinates?

How do I know whether to add 180° or 360° in finding my y value in working with polar coordinates?

12/12/16

#### Rewrite the complex number in rectangular form, a + bi.

Rewrite the complex number in rectangular form, a + bi.
z=7cis(pi/6)=?
A. 7+7i
B. ((7(sqrt 3))/2)+(7/2)i
c. (sqrt 3/2)+(1/2)i
D. (7/2)+(7/2)i

10/22/16

#### Polar Coordinates DIFFICULT question! PLEASE HELP!!!

When recording live performances, sound engineers often use a microphone with a cardioid pickup pattern because it suppresses noise from the audience. Suppose the microphone is placed 4 m from the...
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10/21/16

#### Find the area of the region that lies inside both curves. PLEASE HELP!

Find the area of the region that lies inside both curves.r = √3 cos θ, r = sin θ
Thank you in advance!

10/21/16

#### Find the area of the region that lies inside the first curve and outside the second curve.

Find the area of the region that lies inside the first curve and outside the second curve.r = 9 cos θ, r = 4 + cos θ
Please show steps! Thanks in advance!

10/20/16

#### Find the area of the shaded region r=v? PLEASE HELP!

Find the area of the shaded region r=√θ (r is equal to the square root of theta)
I can't show the picture but the shaded region is in the fourth quadrant.
Thanks in advance!

Polar Coordinates

05/11/16

#### The polar coordinates are given. Find the rectangular coordinates.

The polar coordinates (-3,120°) are given what are the rectangular coordinates?

#### Find an equation equivalent to x^2 - y^2 = 4 in polar coordinates.

Find an equation equivalent to x^2 - y^2 = 4 in polar coordinates.

12/10/15

#### How to graph r=4/costheta-sintheta

should i change it to rectangular form to graph it? is there any technique to graph directly from a polar equation?

09/21/15

#### need help converting r= 2/1-cos ? to Cartesian equation

need help converting r= 2/1-cos ? to Cartesian equation

Polar Coordinates

10/21/14

#### average distance interior of disk to center

Find the average distance from a point P(x,y) in the disk x2+y2≤a^2 to the origin.

Polar Coordinates

10/21/14

#### area of one leaf of a rose

Find the area enclosed by one leaf of the rose r=12cos3θ

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