Great thanks

# Thread to share Good Questions from Calculus which requires deep thinking

**Viraj_2019**#204

How ? @aayush cos(pi-x) = -cosx right?

@Siddhant_Mudholkar Not yet completed this chap .. Try but..

**Azimuddin_2019**#210

Is there any more tricks like Feynman in integration ? , I used that just in some problems , anyone knows ?

**Naman**#211

Feynman is way out of syllabus..and you are searching for more

Feynman is not for time saving...it is for solving some integrals which look unsolvable

Nope

**Azimuddin_2019**#212

Just for time saving @Naman bro Yeah I mean for trickier problems that is time saving

**Naman**#213

\displaystyle \int_{0}^{1} \frac{2^{x}}{(\sqrt{5}+1)^{x}+(\sqrt{5}+3)^{x}} dx

A good question well inside JEE syllabus.

**Aayush_2019**#219

Is there any other trick to solve unsolvable looking questions? in calculus?? Or jee maths?

Like this feynmann as i got to know this some weeks before and I felt very good after knowing it. @Naman @Anindya_Sikdar @Siddhant_Mudholkar

**Siddhant_2019**#220

No other chapters have much of unsolvable question I think

Integration is the only one

**Aayush_2019**#221

Btw @Siddhant_Mudholkar @Anindya_Sikdar @pratyaksh_tyagi @naman any ques of feynmann came in jee till now?