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# Partial Derivatives Watch

1. Question: If , show that wxx = wt for every real number c.

If I put wxx = wt, I get , which means that the equation is only true if c is +e OR -e. I can't just prove how the equation holds true for every real number c.

Any help would be appreciated.
2. (Original post by Zishi)
Question: If , show that wxx = wt for every real number c.

If I put wxx = wt, I get , which means that the equation is only true if c is +e OR -e. I can't just prove how the equation holds true for every real number c.

Any help would be appreciated.
Looks like a typo.

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