limits

[frank nimbus]

Ask question / show work

[junior sun]

?

[frank nimbus]

What have you tried ? Where are you stuck ?

[junior sun]

idk where am stuck

[frank nimbus]

So actually you're not far ! Try to start again from here

[frank nimbus]

In particular you want to transform that 1/(1-tan²) - 1 into a single fraction

In a second step, write tan as sin/cos. Then you should get something fairly "simple"

[junior sun]

is there any formula for that ?
and what do you mean about fraction

[frank nimbus]

I meant like $\frac{1}{1-tan^2(x)} - 1 = \frac{something}{1-tan^2(x)}$

[quasi badge]

Twenty

[frank nimbus]

I don't know how to call it in english 🥲
Make it the same denominator ?

[junior sun]

ohh she something is called "function"

f(x)

i have bunch of more questions and difficulty is increasing
am still on page 3 😭

[frank nimbus]

Did you manage to find the result for this one ?

[junior sun]

not yet

[junior sun]

..

[frank nimbus]

good luck 🥲

[frank nimbus]

I don't understand 🧐 is this a question ?

[junior sun]

noo

[junior sun]

you are saying fraction

i think you are meant to say function

[frank nimbus]

Nope, I meant fraction

[junior sun]

ohh

[frank nimbus]

As in $\frac{a}{b}$

[quasi badge]

Twenty

[junior sun]

ohh

[frank nimbus]

anyways I meant that you should try to do that ^

[junior sun]

am still confused 🥲

can you give me solution please

[frank nimbus]

Let me rephrase my question

Can you transform

$\frac{1}{1-tan^2(x)} - 1$

[quasi badge]

Twenty

[frank nimbus]

Into a single fraction ?

[frank nimbus]

There's no point in just giving the solution...

[junior sun]

[strange dragon]

use lhopitals rule

[junior sun]

any alternative ??

[polar citrus]

is it possible i can get the file from you

[junior sun]

what file ?

[polar citrus]

the one with limits

[wooden summit]

the answer is C, right?