Question

FIND:

Answer 1

d/dx (cosx/ln x)

Answer 2

(how can i do fraction in the equation thing?)

Answer 3

\[\frac{d}{dx}\left( \frac{\cos x}{b} \right)\]

Answer 4

you need to use the quotient rule. if you have a function in the form:
\[\frac{f(x)}{g(x)}\]then:
\[\frac{d}{dx}\frac{f(x)}{g(x)} = \frac{f'(x)g(x)-f(x)g'(x)}{g(x)^2}\]

Answer 5

ok thanks

Answer 6

or you acn use product rule

Answer 7

you just have to rewrite the denominator as a ^-1

Answer 8

i'd go with quotient for this one tho

Answer 9

there isn't anything you can do to simplify i dont think