find the sum
`(2+1)(2^2+1)(2^4+1)(2^8+1)...(2^64+1)`

Find the sum: 2 1/2 + 3 1/2

Find the sum: 2 1/2 + 3 1/2

Find the sum : 1 1/4+1 1/2

Value of (2+1) (2^(2) +1) (2^(4) +1) (2^(8) +1) (2^(16) +1) (2^(32) +1) (2^(64) +1) is

2^32-(2+1)(2^2+1)(2^4+1)(2^8+1)(2^16+1) is equal to- 2^32-(2+1)(2^2+1)(2^4+1)(2^8+1)(2^16+1) के बराबर है।

Find the sum sum_(r =1)^(oo) tan^(-1) ((2(2r -1))/(4 + r^(2) (r^(2) -2r + 1)))

Find the sum 1+(1)/(1+2)+(1)/(1+2+3)+......+(1)/(1+2+3+......+n)

Find the sum : 1 1/8 - 2 3/4 + 6 2/3