By , 11 months ago

Initially number of voters = 800

Let initially number of voters (for) = x

      Initially number of voters(against) =y

  x + y = 800

Now 

1/3 of for voters are abducted , also the strength of against voters increase by 100% i.e. they become double

 For                                Against

2x/3 - y                               2y



  given 2y =  50% of (initial)

                 = 1/2 . 800 = 400

 y = 200 and so x = 600

Now for voters = 2x/3 - y  = 2/3 . 600 - 200 = 200

 2y = 2 x 200 = 400

 So now voters (for) = 200

               Voters (against) = 400

By , 11 months ago

tan7A-tan5A-tan2A=tan7A.tan5A.tan2A