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If (1 + x + x 2 ) 25 = a 0 + a 1 x + a 2 x 2 + ..... + a 50 . x 50 then a 0 + a 2 + a 4 + ..... + a 50 is : 1. even 2. odd & of the form 3n 3. odd & of the form (3n - 1) 4. odd & of the form (3n + 1)
























If (1 + x + x2)25 = a0 + a1x + a2x2 + ..... + a50 . x50 then a0 + a2 + a4 + ..... + a50 is :
even
odd & of the form 3n
odd & of the form (3n - 1)
odd & of the form (3n + 1)

Grade:12th Pass

1 Answers

Nehal Wani
21 Points
10 years ago

If (1 + x + x2)25 = a0 + a1x + a2x2 + ..... + a50 . x50 then a0 + a2 + a4 + ..... + a50 is :

 

 

Put x=1,

a0 + a2 + a4 + ..... + a50 =325=3.324

Hence (2) is the correct option!

 

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