Question

Pls help this is pretty urgent

Answer 1

Answer: 9. a. x*f(x)=

x*((1-cos x)/x)=1-cos x

x*g(x)=

x*2/x=2

-1<=cos x<=1

1>=-cos x>=-1

2>=1-cos x>=0

3>=-cos x>=-1

3>=-cos x>=-1 ==> 1>=-cos x>=-1

b. x=0. The x value in f(x) and g(x) can't be 0.

c. 1/2

Explanation:

c. f(x)/g(x)=

((1-cos x)/x)/(2/x)=

(x(1-cos x)/x)/2=1-cos x/2

1-cos (0)/2=

1-1/2=1/2