Find all the possible values of the following expressions: `1/(x^2+2)` (ii) `1/(x^2-2x+3)` (iii) `1/(x^2-x-1)`

Find all the possible values of the expression: 1/(x^2+2)

Find all the possible the value of the following expression dot sqrt(x^2-4) (ii) sqrt(9-x^2) (iii) sqrt(x^2-2x+10)

Find all possible values of the following expressions : (i) sqrt(x^(2)-4) (ii) sqrt(9-x^(2)) (iii) sqrt(x^(2)-2x+10)

Find all the possible values of f(x) =(1-x^2)/(x^2+3)

Find all the possible values of f(x) =(1-x^2)/(x^2+3)

Find all possible values of expression sqrt(1-sqrt(x^(2)-6x+9)).

If x=1 and y=2, find the values of each of the following algebraic expressions: (i) x^2y (ii) x^2+y^2 (iii) y^2+3-x^2

Find the value of the following expressions, when x=-1 (i) 2x-7 (ii) -x+2 (iii) x^2+2x+1 (iv) 2x^2-x-2

Find all possible values of (x^2+1)/(x^2-2) .

Find all possible values of (x^2+1)/(x^2-2) .