[" If "1+x^(2)=sqrt(3)x," then "sum_(n=1)^(24)(x^(n)-(1)/(x^(n)))" is equal to "(A)48" ( "],[-48(C)+-48(omega-omega^(2))" (D) none of these "]

If 1+x^(2)=sqrt(3)x , then sum_(n=1)^(24)(x^(n)-(1)/(x^n))^(2) is equal to

If 1+x^(2)=sqrt(3)x , then sum_(n=1)^(24)(x^(n)-(1)/(x^(n)))^(2) equals

If x^(2) - x+ 1 =0, sum_(n=1)^(5) (x^(n) +(1)/(x^(n))) equals -

If omega is a complex nth root of unity, then sum_(r=1)^n(a+b)omega^(r-1) is equal to (n(n+1)a)/2 b. (n b)/(1+n) c. (n a)/(omega-1) d. none of these

If omega is a complex nth root of unity, then sum_(r=1)^n(ar+b)omega^(r-1) is equal to A.. (n(n+1)a)/2 B. (n b)/(1+n) C. (n a)/(omega-1) D. none of these

If omega is a complex nth root of unity, then sum_(r=1)^n(ar+b)omega^(r-1) is equal to A.. (n(n+1)a)/2 B. (n b)/(1+n) C. (n a)/(omega-1) D. none of these

If omega is a complex nth root of unity,then sum_(r=1)^(n)(a+b)omega^(r-1) is equal to (n(n+1)a)/(2) b.(nb)/(1+n) c.(na)/(omega-1) d.none of these

The sum of 1+n(1-(1)/(x))+(n(n+1))/(2!)(1-(1)/(x))^(2)+...oo will be x^(n) b.x^(-n) c.(1-(1)/(x))^(n) d.none of these

int_(1/n)^((an-1)/n) sqrt(x)/(sqrt(a-x)+sqrt(x))dx= (A) a/2 (B) (na+2)/(2n) (C) (na-2)/(2n) (D) none of these