Try using differencing twice. The first differencing gives the sequence 3, 9, 15, 21. Then try to find a generating function for THAT sequence. Use differencing on the new sequence to get 6, 6, 6, 6, ... and use the known generating function for that part.
Wonderful! Thanks so much for your teaching!
How many times we have to roll dice in 10 ways to get sum as 3 ... i hate discrete
Try using differencing twice. The first differencing gives the sequence 3, 9, 15, 21. Then try to find a generating function for THAT sequence. Use differencing on the new sequence to get 6, 6, 6, 6, ... and use the known generating function for that part.
hey! make more videos!
How u took that 1-2x+3x²-4x³+5x⁴... As 1/(1+x)².????
ya I need exxplanation for this too actually
Derivative of geometric series or generalized binomial expansion
The generating function for 6x^2+ 6x^3 + ... is 6x^2(1/1-x). The other terms come along for the ride.
6:23 In generating function we dont care about convergence too much so it is easier to observe that we have derivative of geometric series here
i also watch sybermath!,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,hi!
In the second example instead of subtracting xA can we add it make (1+x)A=...........................
Thank you
sarita hirekhan are you a student of MAKAUT , and giving semester exams 2017 ???
😂😂 I just guess that
Nope
sarita hirekhan So , what are you studying ??
sarita hirekhan I also have a question. ,if you can help me