Question

The sum of x² – y², y² – z² and z² – x² is​

Answer 1

Answer:

x² – y²+ y² – z²+ z² – x² = x²-x²-y²+y²-z²+z²=0. (since, 1-1=0, similarly, x²-x², y²-y²,z²-z² will be zero.)

Answer 2

Step-by-step explanation:

Sum of x² – y², y² – z² and z² – x² is

(x² – y²) + (y² – z²) + (z² – x²)

x² - y² + y² - z² + z² - x²

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