मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Find the Cube-root of -216 X 1728

Advertisements
Advertisements

प्रश्न

Find the cube-root of -216 x 1728

बेरीज
Advertisements

उत्तर

-216 x 1728

2 216
2 108
2 54
3 27
3 9
3 3
  1

 

 

 

 

 

 

 

 

2 1728
2 864
2 432
  216

 

 

 

 

= -(2 x 2 x 2 x 3 x 3 x 3) x (2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3)
= -2 x 3 x 2 x 2 x 3
= -72

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Cubes and Cube Roots - Exercise 4 (B) [पृष्ठ ५१]

APPEARS IN

सेलिना Concise Mathematics [English] Class 8 ICSE
पाठ 4 Cubes and Cube Roots
Exercise 4 (B) | Q 7.2 | पृष्ठ ५१

संबंधित प्रश्‍न

Find the smallest number by which the following number must be divided to obtain a perfect cube.

135


Which of the following is  perfect cube? 

216


What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?

1323


By which smallest number must the following number be divided so that the quotient is a perfect cube?

107811


By which smallest number must the following number be divided so that the quotient is a perfect cube?

243000


Which of the following number is  not perfect cubes? 

216


For of the non-perfect cubes in Q. No. 20 find the smallest number by which it must be divided so that the quotient is a perfect cube.


Write true (T) or false (F) for the following statement:

8640 is not a perfect cube.


Which of the following number is cube of negative integer - 42875 .


Show that the following integer is cube of negative integer. Also, find the integer whose cube is the given integer −5832 .

 


Find the cube root of the following natural number 134217728 .


What is the smallest number by which 8192 must be divided so that quotient is a perfect cube? Also, find the cube root of the quotient so obtained.


Making use of the cube root table, find the cube root
1100 .


Find if the following number is a perfect cube?
243


Find if the following number is a perfect cube? 
588


Find the cube-root of -216


Find the cube-root of 9.261


Find the cube-root of - 15.625.


Find the smallest number by which 200 should be multiplied to make it a perfect cube


Difference of two perfect cubes is 189. If the cube root of the smaller of the two numbers is 3, find the cube root of the larger number.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×