Test Mode Reading Mode Right = 0 Wrong = 0

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All Question - (521)

(2x+3y)/(3x+10y)
(2x-3y)/(3x+10y)
(2x+3y)/(3x-10y)
-(2x+3y)/(3x+10y)
     x+x22+x33+... 
   x-x22!+x33!...
1+x22+x33+...
 x-x22+x33- ....