Solve this: Illustration 9 : In the expansion of (x+a)n the sum of even terms is E and that - Maths - Binomial Theorem

Question

Solve this:

Illustration 9 : In the expansion of (x+a)n the sum of
even terms is E and that of odd terms is O, then
O2+E2 is equal to

a   x + a 2 n + x - a 2 n          
                 
                b 1 2
  x + a 2 n +   x - a 2 n c 1 2   x + a 2 n -  
x - a 2 n                
            d x + a 2 n -   x -
a 2 n

Varun Rawat · Accepted Answer

Refer the following link :

https://www meritnation
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Solve this: Illustration 9 : In the expansion of (x+a)n the sum of even terms is E and that of odd terms is O, then O2+E2 is equal to. a x + a 2 n + x - a 2 n b 1 2 x + a 2 n + x - a 2 n c 1 2 x + a 2 n - x - a 2 n d x + a 2 n - x - a 2 n