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Find the arithmetic mean between : (i...

Find the arithmetic mean between :
(i) 9 and 31
(ii) `(m - n ) and (m + n)`
12 and - 22

Text Solution

Verified by Experts

(i) A.M. between 0 and ` 31 = (9 + 31 )/(2) = 20 `
(ii) A.M. between `(m - n) and (m + n) = (m - n+ m+ n)/(2) = (2m)/(2) = m`
(iii) A.M. between 12 and ` - 22 = (12 + (-22))/(2) = (-10)/(2) = -5 `
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