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(2)/(2!)+(2+4)/(3!)+(2+4+6)/(4!)+....=...

`(2)/(2!)+(2+4)/(3!)+(2+4+6)/(4!)+....=`

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(1+(2^(2))/(2!)+(2^(4))/(3!)+(2^(6))/(4!)+....)/(1+(1)/(2!)+(2)/(3!)+(2^(2))/(4!)+....)=

the value of 2/(1!)+ (2+4)/(2!) + (2+4+6)/(3!) +.................. is

(1+(2^(2))/(2!)+(2^(4))/(3!)+(2^(6))/(4!)+...)/(1+(1)/(2!)+(2)/(3!)+(2^(2))/(4!)+...)=

Prove that, (1.3)/(1!)+(2.4)/(2!)+(3.5)/(3!)+(4.6)/(4!)+.....=4e

the value of (2)/(1!)+(2+4)/(2!)+(2+4+6)/(3!)+............ is