" 17."(x-7)/(x-2)>=0,x in R

Solve: (x-7)/(x-2)ge0,x in R

0lt(2x-5)/2lt7, x in R

The range of the function f(x)=(x^2+x+2)/(x^2+x+1),x in R , is (1,oo) (b) (1,(11)/7) (1,7/3) (d) (1,7/5)

The range of the function f(x)=(x^2+x+2)/(x^2+x+1),x in R , is (1,oo) (b) (1,(11)/7) (c) (1,7/3) (d) (1,7/5)

The range of the function f(x)=(x^2+x+2)/(x^2+x+1),x in R , is (1,oo) (b) (1,(11)/7) (1,7/3] (d) (1,7/5)

The range of the function f(x)=(x^2+x+2)/(x^2+x+1),x in R , is (a) (1,oo) (b) (1,(11)/7) (c) (1,7/3) (d) (1,7/5)

If f(x) = x + 7 , and g(x)=x-7 , x in R. Find (f0g)(7)?

If the equations x^(3)+5x^(2)+px+q=0 and x^(3)+7x^(2)+px+r=0 (a,q,r in R) have exactly two roots common,then p:q:r is