Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Method of disks or the method of rings
One of the simple methods for getting the cross-sectional area is to cut the object perpendicular to the axis of rotation. Carrying out this the cross section will be either a solid disk if the object is solid (as our above example is) or a ring if we've hollowed out portion of the solid (we will illustrates this eventually).
In the case that we obtain a solid disk the area is,
A = ∏ ( radius )2
where the radius will based upon the function and the axis of rotation.
In the case that we get a ring the area is following,
where again both of the radii will based on the functions given & the axis of rotation. Note that in the case of solid disk we can think of the inner radius as zero & we'll arrive at the correct formula for solid disk and therefore this is a much more general formula to utilize.
Also, in both of the cases, whether the area is a function of x or a function of y will based upon the axis of rotation as we will illustrates.
This method is frequently called the method of disks or the method of rings.
4856+12334
?????? ?????? ?? ???? ??????? ???????? ?????? 3.5 ?? ??? ???? ???? ????? 50??/???? ??????20??/???? ???? ?? ?? ?????? ???????? ??? ??? ?? ??????? ??????? ? ?? ????? ????
If a school has lockers with 50 numbers on each combination lock, how many possible combinations using three numbers are there.
a child prepares a poster to save energy on a square sheet whose each side measures 50 cm . At each corner she draws a quadrant of radius 5 cm and the centre of a circle of diamete
Determine if the line that passes through the points ( -2, -10) and (6, -1) is parallel, perpendicular or neither to the line specified by 7 y - 9 x = 15 . Solution Togive
Find out the surface area of the solid acquired by rotating y = √ (9-x 2 ), - 2 x 2 about the x-axis. Solution The formula that we'll be using here is, S = ∫ 2Πyds
How can we calculate the Determinant of an N×N Matrix?
A farmer grows apples on her 600 acre farm and must cope with occasional infestations of worms. If she refrains from using pesticides, she can get a premium for "organically grown"
Standard Basis Vectors The vector that is, i = (1, 0,0) is called a standard basis vector. In three dimensional (3D) space there are three standard basis vectors, i → = (1
Pre-operational Stage : This period of a child's cognitive development usually begins at the age of 2, and lasts until about the age of 6. Thus, it usually coincides with the pre
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd