|
Calculus help.
ok so we just started Rolle's Theorem in calculus and im kinda confused. like i dont know how to know if the equations are continious or differentiable? like this one ::
f(x)= x2-3x+2
in the notes our teacher put that its both continuous and differentiable, but how do you find that out?
another one is f(x)= (x2-1)/x
she said that its not continuous, so Rolle's theorem doesnt apply.
but like.. how can you tell if its continous & differentiable!?!
i cant go in in the mornings for help & i work after school so its hard to get time to go, but if anyone could just help me with this one thing it'll help alot! this is the first time ive been seriously confused in this class ha thanks =]
[ ]
Want to answer more questions in the Work & School category?
Maybe give some free advice about: School?
the only way i know to check if a function is differentiable is to try to find the derivative. if one exists, then it is, if not then its not. as for continuity, a function is not continuos if its undefined for any value of x. in the second function, if x=0 then the function is -1/0 and therefore undefined.
]
i personally dont know the answer to that, but is it from a book?
check out cramster.com, they have tons of books with solutions to problems, and show u everything step by step
goodlick
]
More Questions: |