a few random questions :

1. Given :2. Show from first principles that,

(a) Prove this results from first principles.

3. Let

Hence give an expression ofGiven that g(10) = 8.1882 and g(20) = 60.3403, calculate g(15).

4. Consider a function f such that f(11) = 1.234 and f(12)=2.345. Assuming that the function is linear over the interval from 11 to 12, calculate f(11.36).

Someone would please kindly guide me on how to do the questions! Thanks in advance!