Math miscellaneousHard
Question
If Xm. yn = (x + y)m + n, then 
is
is Options
A.
B.
C.xy
D.
Solution
xm.yn = (x + y)m+n ⇒ mlnx + nlny = (m + n)ln(x + y)
∴
⇒
∴
⇒
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