i. 343
5. Find the smallest number that must be subtracted from 792 to make it a perfect cube. Also
find the cube root of this perfect cube.
6. Find the smallest number that must be added to 400 to make it a perfect cube. Also, find
the cube root of this perfect cube.
Please send me fast
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Answer:
- We know that 10 ka cube = 1000
we also know that 9 ka cube = 729
since 792 lies between both these number and we have to subtract from 729 to get a perfect square 792- 729 = 63
Therefore 63 must be subtracted from 792 to get perfect cube.
The prefect cube= 729= 9 ka cube
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