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[" 8."(1)/(11(n-1)!)+(1)/(3!(n-3)!)+(1)/...

[" 8."(1)/(11(n-1)!)+(1)/(3!(n-3)!)+(1)/(5!(n-5)!)+cdots],[" (a) "(2^(n))/(n!);" for all even values of "n],[" (b) "(2^(n-1))/(n!);" for all values of "n" i.e,all even and odd values "],[" (c) "0],[" (d) none of these "]

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If (1)/(1!(n-1)!) + (1)/(3!(n-3)!) + (1)/(5!(n-5)!) +…. =

(1)/(1!(n-1)!)+(1)/(3!(n-3)!)+(1)/(5!(n-5)!)+ . . . Equals:

Prove that (1)/(1!(n-1)!) + (1)/(3!(n-3)!)+ (1)/(5!(n-5)!) + …….= (2^(n-1))/(n!)

Prove that (1)/(1!(n-1)!) + (1)/(3!(n-3)!)+ (1)/(5!(n-5)!) + …….= (2^(n-1))/(n!)

Find the sum of (1)/(1!(n-1)!)+(1)/(3!(n-3))+(1)/(5!(n-5))+

Find the sum of 1/(1!(n-1)!)+1/(3!(n-3))+1/(5!(n-5))+ ,

Find the sum of 1/(1!(n-1)!)+1/(3!(n-3)!)+1/(5!(n-5)!)+ ...,