12 (ex-e-x) এর ধারা বিস্তৃতি কি?
A
1+ x33!+x+55!
B
1-x33!+x55! +........
C
x+x33! + x55!+ ....
D
x -x33! +x35!+....
Correct Answer: x+x33! + x55!+ ....