Question

Determine f(2)(x) when f(x) =sin x/cos x + 1

Answer 1

That notation doesn't make much sense.
Do they want you to evaluate f(2)? Because that would make sense :)

Answer 2

yes they do

Answer 3

So you just plug a 2 into every place you see an x in the problem.
Hmmm 2 is not a special reference angle. So you can't get an exact answer.
Are you allowed to use a calculator for this problem?

Answer 4

sorry i typed that wrong they want just the derivative of f(x)=sinx/cosx+ 1

Answer 5

Oh I see :)

Hmmm looks like we have the quotient rule.
Remember how to set up the quotient rule?\[(\frac{ u }{ v })'=\frac{ u'v-uv' }{ v^2 }\]

So in this problem:
u=sinx
v=cosx

Answer 6

Oh maybe I'm misreading it.
Is it (cosx+1) on the bottom?

Answer 7

yes........

Answer 8

Ok then your v=cosx + 1 :)

Answer 9

ok...

Answer 10

Uh ohhhh I'm getting dots :D
You confused lil sandy? :D

Answer 11

what is the answer