Functions -inverse

[phelps.phan]

The answers are b and b. Please help with the approach. Thanks

[The Villain]

Are you sure abt the options..i guess its wrong
quest 2 ans is 1/2 log(1+x/1-x)

[phelps.phan]

Sorry I think the 1st qn has some typing mistake. Corrected one is put above. Ron how did u find the second one. what approach? I think there is a formula for e^x - e^(-x). I just dont get it now.

[The Villain]

[jack]

answer should be (D) for Q.2

[jack]

Sry ans is b...by mistake i typed d

[Dreyfus]

Ron.....there is an error in step 5....u forgot to multiply y by 1......nd I m getting option b for this...

[Homer Simpson]

both problems are similar. i am getting 1(b). is that fine?

[The Villain]

yah i made a silly error...grr

[phelps.phan]

Thanks Ron..

[Ashima]

Ron can you please explain the 2nd one again.

It also has a "+2" which you guys have missed. :(

[Ashima]

Yeah its b , GOT IT NOW :)