Combinations | Theorem | To prove that nCr + nCr-1= n+1Cr

#combination #permutation #maths
Combinations | Theorem | To prove that nCr + nCr-1= n+1Cr

[naliniangajala]

If 1 <= r <= n then what is the value of n/r ^ (n - 1) C r-1



Solve this problem Sir Please 🥺

[gautamgupta]

sir please tell me can we prove it by taking values on both the sides??? i have proofed by assuming values of ncr and ncr-1 in lhs for ex like...4c3 + 4cr-1 and same like this in RHS i have done like this...will it be correct or not..please tell

[Jubaraj]

I am class 10th student it is the question of our advanced mathematics book

[vivekmishra]

Very easy trick thnkyou sir .I had wasted too much time in this question but your trick is finally applicable nd just solved in 5 minutes ty sir ❤🙏

[amanali]

This video is helpful for me to understand this concept 😊

[lowtrader]

U seem legit and guess what? You are really are! 😄❣️ Thank you so much, it's sooo easy now

[vaishnavireddy]

Actually I have seen another video of same sum it was. Lengthy but you explanation simple and short thank you!

[TamilarasiNagaraji]

n!(n+1)! How to write (n+1)! Plz explain sir

[AnupamSarkar-nttv]

It helped in my maths engineering too thanks sir😊😊😊

[hehehehehheheheheheheheheh]

¹⁵C4+¹⁵C5= ¹⁶C5 is this correct sir? Please reply please sir

[enayetovi]

I am from Bangladesh and I am a student of class 11th . This video is very helpful for me . Thank you so much Sir♥

[ISOCYANATE]

sir you look like national security advisor ajit doval by the way great explanation🙏🙏

[WickedSick]

Thank you sir ❤ u explained really well
In NCERT its proof is really complicated

[venkataramanansivasubraman]

I am 11th std this qu out of syllibus sir