The value of `(1-x^4)/(1+x)+(1+x^2)/xxx1/(x(1-x))` is (a) 1 (b) `1-x^2` (c) `1/x` (d) `1+x` (e) None of these

(x)/(x-1)+(1)/(x+1)+(2x)/(1-x^(2))=?( a) 1 (b) 2 (c) 3(d)4

If a (A) x=0 (B) x=1 (C) x=2 (D) None of these.

If (x-1)/(x)=3, then the value of 1+(1)/(x^(2)) is (a) 9(b) 10(c)11 (d) None of these

(xe^x)/(1+x)^2dx= (A) e^x/(1+x) (B) e^x/(1+x)^2 (C) e^xlog(1+x) (D) none of these

The value of int_(1)^(e)((tan^(-1)x)/(x)+(log x)/(1+x^(2)))dx is tan e(b)tan^(-1)e tan^(-1)((1)/(e))(d) none of these

The value of int_(0)^(1)e^(x^(2)-x)dx is (a) 1(c)>e^(-(1)/(4))(d)

The value of x which satisfies sin^(-1)(1-x)-2sin^(-1)x=(pi)/(2) is (A) x=1 (B) x=(1)/(2)(C)x=0 (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