Question

please answer me.........!​

Answer 1

Answer:

$\frac{1}{r {}^{1} } + \frac{1}{ {r}^{2} } + \frac{1}{ {r}^{3} } = \\ \frac{3}{ {r}^{6} } = r = 3 - 6 \\ r = 3$

I hope it help you.........

Answer 2

Answer:

Step-by-step explanation:

$\frac{R1 *R2*R3}{R1+R2+R3}$

Please mark brainliest answer

Please also try he question i just post Plzzzz