Struggling with Fractional Indices

A sphere of radius Rcm has area Acm^2 and Volume Vcm^3.

Show that A=kv^(2/3) where k = (this is a cube root) 3√(36pi)

I substituted but I don't really know where to go from there.

Reply 1

mqb2766

Original post by Scertile

A sphere of radius Rcm has area Acm^2 and Volume Vcm^3.

Show that A=kv^(2/3) where k = (this is a cube root) 3√(36pi)

I substituted but I don't really know where to go from there.

Can you rewrite the volume equation as
R = f(V),
For the function f(), then substitute for R in the area equation?

Reply 2

armii

I solved it, would you like the solution?

Reply 3

Sinnoh

Original post by armii

I solved it, would you like the solution?

This thread is over a year old. Also, we discourage people from posting full solutions on here; it doesn't really help people learn. The more of it they're able to do themselves, the better.

Reply 4

davros

Original post by xj824

Could you post the solution please?

as per the previous post, we don't post full solutions - it's against forum rules!

If you're stuck, post what you've done so far and someone can help you out :smile: