## roselin 2 years ago evaluate indefinite integrals intergral tan^2x Sec^2x dx

1. shubhamsrg

let tax x = z hope this helps ?

2. roselin

you mean tanx= z?

3. shubhamsrg

yep..the very same! o.O

4. roselin

okay, then how do I proceed from there?

5. shubhamsrg

if tanx =z what will be the value of dx/dz ?

6. roselin

would you mind writing down the whole problem and explaining it ? I am getting confused

7. shubhamsrg

ofcorse i'd mind!:P i can only help..its you who got to try on your own! :D

8. roselin

Well, to try it I should have an idea about where and how to start it. So can you at least tell me how to start the problem

9. shubhamsrg

you even done substitution problems before? for example, if i ask you integrate (2x / (x^2 +1)) .. how will you do it ?

10. roselin

No I have not done that

11. shubhamsrg

then you should begin from the beginning.. you should not attempt these kinda problems for now..start from the basics..

12. shubhamsrg

hmmm..

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