# Math Help - Find R

1. ## Find R

1296/625=r^4

wat r =?

2. Originally Posted by nick_c
1296/625=r^4

wat r =?

Take the fourth root of both sides

$r = (\frac{1296}{625})^{0.25}$

3. the problem is i dont know how 2 find the 4th root

4. Originally Posted by nick_c
the problem is i dont know how 2 find the 4th root
Your calculator should have a power button where you can put in 0.25 or a nth root button where you can take the 4th root.