`f(x) = 6sqrt(x) + 5cos(x)` Find the derivative of the function.
Rewrite the function:
Take the derivative of the first term by using the power rule and the derivative of the second term.
`f'(x)= 1/2 (6)x^(-1/2)-5sin(x)`
Simplify the first term and eliminate the negative exponent.
The answer is: