Math, asked by sim1531, 5 months ago

If u = f(r,s), r = x+y , s= x-y then &u /&x - &u/&y =
1. -&u/&r
2. 2&u/&r
3. &u/&s
4. 2&u/&s

Answers

Answered by kumarilaxmi62033

2

Answer:

I DON'T NO

Step-by-step explanation:

MARKS AS BRAINLIST

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