Math, asked by varshithchoudary123, 8 months ago

7.
f the sum of (x + y) observations is (x2-y2), then find the
mean.

Answers

Answered by sairajaindira

0

Step-by-step explanation:

X-Y.. Sum of obs ➗ by no. Of obs=(x-y) (x+y) ➗ x +y...

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