If f(x) =√(x^2- 10x + 25), then the derivative of f(x) in the interval [0, 7] is A. 1 B. –1 C. 0 D. none of these

Question

If f(x) = \(\sqrt{\text x^2-10\text x+25},\) then the derivative of f(x) in the interval [0, 7] is

A. 1

B. –1

C. 0

D. none of these

Answer 1

Correct option is D. none of these

Since there is no fixed value of f’(x) in the interval [0,7]