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maths gcse

how do you simplify 1/3 π 4x ??????
pls explain too !!!! how u got to what your doing
Reply 1
Original post by LaChataliers
how do you simplify 1/3 π 4x ??????
pls explain too !!!! how u got to what your doing


I dont understand what needs simplifying. That is the volume of a sphere
I think they want 4/3 π x^3
as if you ignore pi then 1/3 X x^2 X 4x = (4 X 1/3) X (x X x^2) = 4/3 x^3 so adding pi back in gets the final answer.

I removed pi as I don't have a pi key and I added the brackets to show what happens they aren't needed.
Original post by Kakemono
I think they want 4/3 π x^3
as if you ignore pi then 1/3 X x^2 X 4x = (4 X 1/3) X (x X x^2) = 4/3 x^3 so adding pi back in gets the final answer.

I removed pi as I don't have a pi key and I added the brackets to show what happens they aren't needed.


why do u square 1/3?
Original post by LaChataliers
why do u square 1/3?


I don't.
1/3 X x^2

Original post by Kakemono
I don't.
Original post by LaChataliers
1/3 X x^2


Sorry, that is bad formatting. It is just x squared as there are no brackets.
Original post by Kakemono
Sorry, that is bad formatting. It is just x squared as there are no brackets.


one more question bro (10^(6) ^ (1)/(3) what do i do from here , basically its 10 to the power of 6 within a bracket then a power of fraction 1/3 outside bracket ????
Original post by LaChataliers
one more question bro (10^(6) ^ (1)/(3) what do i do from here , basically its 10 to the power of 6 within a bracket then a power of fraction 1/3 outside bracket ????


I'm not sure what you are asking. Is this a different question?
Original post by Kakemono
I'm not sure what you are asking. Is this a different question?

yeh bro within the bracker its 10 to the power of 6 and just outside is an indice of 1/3

(10^6)^1/3
Original post by Joshey
I dont understand what needs simplifying. That is the volume of a sphere


yeah lol u cant simplify
Reply 11
Original post by LaChataliers
yeh bro within the bracker its 10 to the power of 6 and just outside is an indice of 1/3

(10^6)^1/3


You'd get 10^(6×1/3) which is 10^2
Original post by Joshey
You'd get 10^(6×1/3) which is 10^2


why ?
Reply 13
Original post by Kakemono
I think they want 4/3 π x^3
as if you ignore pi then 1/3 X x^2 X 4x = (4 X 1/3) X (x X x^2) = 4/3 x^3 so adding pi back in gets the final answer.

I removed pi as I don't have a pi key and I added the brackets to show what happens they aren't needed.


If you really wanted to simplify just say pi = 3 and upset a lot of people
Original post by LaChataliers
yeh bro within the bracker its 10 to the power of 6 and just outside is an indice of 1/3

(10^6)^1/3


Any thing to the power of 1/3 is the cube root of that number and so the cube root of 10^6 is 10^2

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