Question

Find the value of k if f o f (k) = 5 where f(k) = 2k – 1.

Answer 1

Answer:

k = 3

Step-by-step explanation:

f(k) = 5 [given]

Given that,

f(k) = 2k-1 -------->eq. 1

substitute the value of f(k) in eq.1

5 = 2k-1

5 + 1 = 2k

2k = 5 + 1

2k = 6

k = 6/2

k = 3