What is `(1001)_(2)` equal to ?

What is (1111)_(2) + (1001)_(2) - (1010)_(2) equal to?

What is (1111)_(2)+(1001)_(2)-(1010)_(2) equal to ?

What is the value of ((1001)_(2)^((11)_(2))-(101)_(2)^((11)_(2)))/((1001)_(2)^((10)_(2))+(1001)_(2)^((01)_(2))(101)_(2)^((01)_(2))+(101)_(2)^((10)_(2)))?

What is i^(100)+i^(1001)+i^(1002)+i^(1003) equal to (where i=sqrt(-1)) ?

When simplified the product (2-(1)/(3) ) (2- (3)/(5) ) (2-(5)/(7)) ………… (2- (999)/(1001)) is equal to

In per cent, what is 10.01 written as ?

If x = (1 ^(2))/(1) =+ (2 ^(2))/( 3) + (3 ^(2))/( 5) +.....+ (1001 ^(2))/( 2001) , y = (1^(2))/(3) + (2 ^(2))/( 5) + (3 ^(2))/(7) + .....+ (1001 ^(2))/(2003), then ([x -y])/(10) is equal to where [.] denotes greatest integer function)