Find the fourth member of FOLLOWING formula after expansion (x+2/x)⁸
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Answered by
40
A= x ,B= 2/x ,k =4 ,n=8
Mk = (n. ) A^n-k+1 .B^k-1
k-1
M4= (8 ) x⁵ . (2/x)³. =8!/5!.3! x⁵ .8/x⁵
(3 )
= 8.7.6.5!/5!.6
=8.8.7 x²= 448x2
M4= 448 x².
Answered by
10
A= x ,B= 2/x ,k =4 ,n=8
M4= 448 x².
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