Math, asked by sayansayan, 10 months ago

integration DX by 1 minus sin x​

Answers

Answered by LOVEFOREVER
1
dx/(1-sinx)

put sinx= (2tan(x/2))/(1+(tan(x/2))^2)
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manu250301: we can do it in a much simpler way
LOVEFOREVER: yup
LOVEFOREVER: multiply the term by
manu250301: by rationalizing
LOVEFOREVER: yes
LOVEFOREVER: but questions of this form can always be integrated by the method i just wrote. rationalising the term wont work everytime
LOVEFOREVER: i just provided the general solution!
manu250301: COOL....
Answered by manu250301
0

Answer:

Step-by-step explanation:

firrst rationalize it by multiplying and dividing by( 1+ sin x).

after rationalization it will become ⇒  

∫(1+sinx/cos²x )dx

then  ⇒∫1/cos²x dx  +  ∫sinx/ cos²x dx

⇒(∫sec²x   +  ∫tanx secx )dx

= tanx +secx+ c

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