Find the cube root of any number in seconds | Cube & Cube root | Class 8 Chapter 6 #ytshorts #byjus

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[ShivanshuShekhar-zpdy]

49 is the cube root of117649
Explain-
(I)we put 649 in first group
(II)and we put 117 in second group
(III)the unit place of 649 is 9, which is the unit place of 9 cube so the unit place of cube root number is 9
(IV)117 lies between the cube of 4 and 5 the smaller is 4
So the correct answer is 49

[vaishnavishivanekar]

Ma, am the answer is 49:-
³√117649 we'll group it as
³√_117_ & _649_
The unit place of 649 is 9 and the cube of 9 = 729 also ends with 9

So the unit place of ³√117649 is 9

Now 117 comes between 4³ and 5³
4³= 64. And 5³=125
The smallest number is 64
Since, 64 is the cube of 4

The tenths place of ³√117649 is 40

Now when we add
40
+ 9

49

Hope it's correct ☺️

[PhysicsandPatterns]

Is this correct method for all numbers?

[parunandu]

Ans:49.
The last digit of the first set of numbers-649 is 9 so the number in the one's place of the cube root will be 9. The second set of numbers-117 which will come between the cubes of 4 and 5 which is 64 and 125. 64 which is the cube of 4 is the lesser number so 4 will be in the tens place of the cube root.

[pranjaliyadav]

Mam aap Bahut aachi dikh rahi hooo...

[subharamappa]

Cube root of 117649 is 49

First we have to make pairs of 3 numbers. That is 117 and 649. Then see the last digit of 649, the last digit is 9 so 9 comes in 9' cube. So we will write 9 at the last.

Next step is to see that 117 lie between which two numbers. It lies between 64 and 125. We have to take the smallest number that is 64. Cube root of 64 is 4. We will write 4 before 9. Hence the cube root of 117649 is 49.

[MeenaDevi-dzhq]

Mam isi question k anadar fractions Ho to kaise solve Karen please tell me mam please please

[VeerannaHv-te]

Thank you ma'am for teaching this❤

[bhumijasarraf]

Mam is this method only apply on 5 digit no. Or else also?

[Ansh....]

Thank you ma'am. The answer is 49. 😃 Bring more shorts 🔥

[ChocolatyQueen_]

The trick is amazing and the cuberoot of 117649 is 49

[srishtijain]

49 will be the answer it was quite easy with this method

[sayedakulsum]

Thank you so much I understood this concept ❤😊
And 117649=49