Question

X 13. The function f(x) = x2 - 4x, x € (0,4) attains minimum value at (a)x=0 (b) x = 1 (c) x=2 (d) x = 4​

Answer 1

Answer:

f(x)=x²-4x

d/dx((fx))=2x-4

For minimum 2x-4=0i..e x=2

therefore option a is correct.