Question

iv. (x - y) (x + y) + (y – z) (y + z) + (z – x) (z + x)​

Answer 1

Answer:

0

Step-by-step explanation:

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Answer 2

Answer:

We will solve this question by breaking it into 3 parts.

(x+y) (x-y) PART 1

By using identity (a+b)(a-b)=a²-b²

x²-y²

Similarly, The other parts will be y²-z² and z²-x² , respectively.

x²-y²+y²-z²+z²-x² ( All numbers will be cancelled as like terms are of opposite signs)

Ans = 0

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