Evaluate each of the following function at given values of the independent variables.

1. f(t)=t/f^2-1

Find:

a. f(-x)

b. f(t-2)

c. -f(2/x)

2. R(y)=(n^2y-sin^2y)

Find:

a. R(0)

b. R(pi)

c. R(-pi)

d. R(pi/2)

e. R(pi/3)

f. R(pi/4)

g. R(pi/6)

h. R(pi-x)

i. R(pi/2 +x)

j. R(pi+x)

3. g(x)=2^y-2^-y

Find:

a. g(2)

b. g(-1)

4. f(x)=3^x-1

Find:

f(1)+f(2)

5. if f(x)=1/square root of x-1

Find:

f(x)-f(2)/x-2