Question

Is there any way to simplify this:

Answer 1

\[pir(r+\sqrt{(81/\pi(r)^2)^2+r^2}\]

Answer 2

r is the radius, it's not pir!

Answer 3

\[\pi r(r+\sqrt{(\frac{81}{\pi r^2})^2+r^2})\]

Answer 4

is that right ?

Answer 5

Yes! How did you get that?

Answer 6

you mean the code ?

Answer 7

No, how did you simplify it? Oh and my notes says the answer is what you put, except there is no r+ (root)

Answer 8

i was just trying to copy what you had

Answer 9

Ooooh my mistake, lol.

Answer 10

like i was just wanting to know that's what i'm/you;re suppose to simplify right?

Answer 11

Yes.

Answer 12

well i guess you could do this:
\[\pi r (r+\sqrt{(\frac{81}{\pi r^2})^2+r^2}) \\ \pi r (r+\sqrt{(\frac{1}{\pi r^2})^2} \sqrt{81^2+(\pi r^2)^2r^2})\]

Answer 13

then that one part the square root cancels that squared

Answer 14

distribute the pi*r

Answer 15

\[\pi r (r+\frac{1}{r \pi^2} \sqrt{81^2+\pi^2 r^6})\]

Answer 16

Thank you!

Answer 17

\[\pi r^2 +\frac{1}{\pi} \sqrt{81^2+\pi^2 r^6}\]

Answer 18

but i don't know if that is really considered more simplified then what you had :p

Answer 19

Eh, it's fine! It's a weird problem.