Solve Equation with Factorials

#Factorial_ibmath #factorialnotation #AnilKumar #globalmathinstitute #PascalsTriangle #Combanatorics #ibslmath

[kalimbwekalimbwe]

Why is it wrong if we write n-1=30 or n-2=30?

[naturewhite]

Sir please the coefficient of x^4and x^3 is in the the ratio 3:1 in the expansion (1+2x)^n what is the value of n

[technicaldosti]

Thanks Sir For Helping Me In Factorial Now i am confident to solve given in my Classroom

Thanks For Your Support
-Anshul Dubey
BCA1

[ashamedashley]

What about (n - 3)! / (n - 4)! = 6? I cannot figure this one out.

[technicaldosti]

Thanks Sir For Helping Me In Factorial Now i am confident to solve given in my Classroom

Thanks For Your Support
-Anshul Dubey
BCA1