If n is a positive integer, then `(1 + i)^n + (1-1)^n` is equal to

If n is a positive integer, then (1+i)^n+(1-i)^n=

If n is a positive integer, then (1+i)^(n)+(1-i)^(n)=

If n is an odd integer, then (1 + i)^(6n) + (1-i)^(6n) is equal to

If i=sqrt-1 and n is a positive integer, then i^(n)+i^(n+1)+i^(n+3_ is equal to

If n is a positive integer, then ^nC_1+^nC_2+....+^nC_n is equal to

If n is an odd integer, then (1+i)^(6 n)+(1-i)^(6 n) is equal to

If n is a positive integer then (frac{1+i}{1-i})^(4n+1) =

If I_(n)=int_(0)^((pi)/(4))tan^(n)xdx, where n is a positive integer,then I_(10)+I_(8) is equal to (A)(1)/(9)(B)(1)/(8) (C) (1)/(7)(D)9

If n is an odd integer,then (1+i)^(6n)+(1-i)^(6n) is equal to

If i= sqrt-1 and n is a positive integer , then i^(n) + i^(n + 1) + i^(n + 2) + i^(n + 3) is equal to