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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Find the Cube-root of 343

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प्रश्न

Find the cube-root of 343

बेरीज
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उत्तर

343
=`root(3)(343)`
= 7 x 7 x 7 = 7

7 343
7 49
7 7
  1
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पाठ 4: Cubes and Cube Roots - Exercise 4 (B) [पृष्ठ ५१]

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सेलिना Concise Mathematics [English] Class 8 ICSE
पाठ 4 Cubes and Cube Roots
Exercise 4 (B) | Q 1.2 | पृष्ठ ५१

संबंधित प्रश्‍न

Which of the following is  perfect cube? 

1000


Which of the following is  perfect cube? 

166375


Which of the following are cubes of odd natural numbers?
125, 343, 1728, 4096, 32768, 6859


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

675


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

 35721


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

8640


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

 35721


Write the units digit of the cube of each of the following numbers:
31, 109, 388, 833, 4276, 5922, 77774, 44447, 125125125


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

392 is a perfect cube.


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

8640 is not a perfect cube.


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

 No cube can end with exactly two zeros.


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

 If a divides b, then a3 divides b3.


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

 If a2 ends in 5, then a3 ends in 25.


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.


Show that: 

\[\frac{\sqrt[3]{- 512}}{\sqrt[3]{343}} = \sqrt[3]{\frac{- 512}{343}}\]


Making use of the cube root table, find the cube root 70 .


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


Find the cube-root of 8000.


Find the cube-root of -0.512


Find the cube root 24 × 36 × 80 × 25


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