Integration by substitution Important questions for board exam class 12 maths

Imp.Qs for Board Exam 2021
Q1. Evaluate: ∫x/(1+x tan⁡x ) dx〗
Q2. Evaluate: ∫sin⁡〖x-x cos⁡x 〗/x(x+sin⁡x ) dx〗
Q3. Evaluate: ∫1/(1+cot⁡x ) dx〗
Q4. Evaluate: ∫(〖sin〗^6 x)/(〖cos〗^8 x) dx〗
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[@TechToppers]

7:50 When sir forgets constant of integration.

[@walayatalisa1472]

Good after noon sir, integration of 1/1+cotx , may be i am wrong, but when u put value t, after substitution where from u got a minus but there is a plus sign

[@jisang7808]

Sir did right only since -dt

[@amarendradubey9415]

Sir u are a great teacher ❤

[@DkSaini_Maths]

Check at 11:22 minute... You did a mistake in sign. You take 1 - integral ... While you are doing 1+ integral
You didn't take minus common. First take minus comon

[@shantanusharma2548]

Sir pls share some more questions.

[@bindasgamer5793]

Sir answer mein aap lastein constant bhi add nhi kar rahe

[@bindasgamer5793]

2:55 sir logt ko log|t| likha jayega

[@surendrakverma555]

Excellent lecture Sir 🙏🙏🙏🙏

[@anupamgg]

Sir thoda answer likhne ke baad side hojaya karo

[@vikaspandey0258]

Wow sir you are great

[@nicogehren6566]

great solution sir thank u

[@anubhaverma7012]

Sir class 10th ke Circles ke HOTs questions plz

[@narendrakushwaha800]

Sir please full test.

[@narendrakushwaha800]

Thanks sir ji.

[@swadeshbhattacharjee1205]

Awesome ❤️

[@SachinYadav-kx8vm]

Thanks sir😘😘

[@ashishsankalp11f29]

Sr can u teach in zoom ..I m in class10 ..my friends r waiting pls sr

[@rbclasses]

You can call 9411990768

[@jaishreeram2320]

Sir why are you not taking online classes??

[@rbclasses]

online class mein network problem hai

[@jaishreeram2320]

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