- #1

- 147

- 0

dx/(y+z)=dy/(x+z)=dz/(x+y)

I've tried the substitution u=x+y+z, du=dx+dy+dz but I couldn't arrive at an answer. Any suggestions?

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- Thread starter ForMyThunder
- Start date

- #1

- 147

- 0

dx/(y+z)=dy/(x+z)=dz/(x+y)

I've tried the substitution u=x+y+z, du=dx+dy+dz but I couldn't arrive at an answer. Any suggestions?

- #2

- 147

- 0

sqrt(x+y+z) = a/(z-y) = b/(x-z)

I think I've solved this equation before but I can't remember how.

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