2. multiply 3 ∕ 4 × 16 ∕ 9 .
a. 4 ∕ 3
b. 64 ∕ 27
c. 3 ∕ 4
d. 27 ∕ 64

To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%