26 Answered Questions for the topic Polar coordinates

Polar Coordinates Calculus Precalculus

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
Polar Coordinates Math Precalculus

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!
Polar Coordinates Precalculus Precalculus

04/25/19

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!
Polar Coordinates Vector Standard Unit Vecors

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... more
Polar Coordinates Calculus Integration

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... more
Polar Coordinates Trigonometry College Algebra

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

05/22/17

#### change rectangular equations to polar equations

x^2+y^2=81
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∅
Polar Coordinates Precalculus Math Help

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?
Polar Coordinates Math Calculus

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
Polar Coordinates Calculus 3 Calculus 2

10/22/16

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... more
Polar Coordinates Calculus 3 Calculus 2

10/21/16

Find the area of the region that lies inside both curves.r = √3 cos θ, r = sin θ   Thank you in advance!
Polar Coordinates Calculus 3 Calculus 2

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!
Polar Coordinates Area Calculus 3

10/20/16

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?
Polar Coordinates Cosine Sine

01/10/16

#### 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.
Polar Coordinates Trigonometry Graphing

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?
Polar Coordinates Precalculus Cartesian Graph

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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