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

If x lies in the interval [0,\ 1] , then the least value of x^2+x+1 is (a) 3 (b) 3//4 (c) 1 (d) none of these

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

If 3y+9x=54 and (28x)/(13y)=(140)/(39), then what is the value of y-x?-2(b)-1(c)1(d)2 (e) None of these

For all real value of x , the maximum value of the expression x/(x^2-5x+9) is 1 (b) 45 (c) 90 (d) None of these

Minimum value of f(x)=2x^(2)-4x+5 is 1 (b) -1(c)11 (d) 3

If x^3+1/(x^3)=110 , then x+1/x=? (a) 5 (b) 10 (c) 15 (d) none of these

For all real value of x, the maximum value of the expression (x)/(x^(2)-5x+9) is 1( b) 45(c)90 (d) None of these

For the function f(x)=x+1/x ,\ \ x in [1,\ 3] , the value of c for the Lagranges mean value theorem is (a) 1 (b) sqrt(3) (c) 2 (d) none of these

If sin^(-1)x-cos^(-1)x=pi/6 , then x= (a) 1/2 (b) (sqrt(3))/2 (c) -1/2 (d) none of these

If x^(3)+(1)/(x^(3))=110, then x+(1)/(x)=5 (b) 10 (c) 15 (d) none of these