calculas

∫dx/1+4cot2x→limit of integarl =0 to pi/2
why not to convert in tan2x?

9 Answers

62
Lokesh Verma ·

richa if you try to convert this to tan2x.. I dont think we woudl get somethign useful

Could you ask your doubt more clearly?

What I understood from your question is that you want to put cotx as 1/tan x?

1
vector ·

actually sir i wanna ask dat i did threis q by replacing cotx by i/tanx but did not got d correct ans and it was given that i cant do this for given limits what is wrong in my techniq plz explain

62
Lokesh Verma ·

well richa I think something is wrong...

YOu can take cot x as 1/tan x here

I dont see anything wrong in that

Could you elaborate more on this one?

1
vector ·

plz sir ans my organic chemistry question that i have submitted earlier.

1
vector ·

sir∫tan2x/tan2x+4.dx
∫sec2x/tan2x+4.dx-∫dx/tan2x+4.
n then i solved both integrals

62
Lokesh Verma ·

there is no mistake uptil now

How did you solve the second integral?

1
vector ·

sir,tanx=t
∫dt/(t2+4)(t2+1)

62
Lokesh Verma ·

yup so I dont see why your answer should be wrong.

To me it seems perfectly correct.

Today I have to go... will try to check this tommorow.. with my own solution . (if no one else is able to clarify in the mean time)

1
vector ·

thank u sir for ur kind efforts sir could u help me in my organic doubts also

Your Answer

Close [X]