Sum of coefficients in multinomial expansion
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If $x,y,z$ are independent of each other, then the sum of the coefficients in the expansion of $(5x+3y-8z)^{30}$ is -
multinomial-theorem
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up vote
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If $x,y,z$ are independent of each other, then the sum of the coefficients in the expansion of $(5x+3y-8z)^{30}$ is -
multinomial-theorem
Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort.
– Vee Hua Zhi
Nov 21 at 12:57
1
I think you can get the sum of the coefficients just by setting $x=y=z=1$, am I right?
– Matti P.
Nov 21 at 12:59
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
If $x,y,z$ are independent of each other, then the sum of the coefficients in the expansion of $(5x+3y-8z)^{30}$ is -
multinomial-theorem
If $x,y,z$ are independent of each other, then the sum of the coefficients in the expansion of $(5x+3y-8z)^{30}$ is -
multinomial-theorem
multinomial-theorem
edited Nov 21 at 13:10
Vee Hua Zhi
772124
772124
asked Nov 21 at 12:53
Nikhil Kumar
1
1
Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort.
– Vee Hua Zhi
Nov 21 at 12:57
1
I think you can get the sum of the coefficients just by setting $x=y=z=1$, am I right?
– Matti P.
Nov 21 at 12:59
add a comment |
Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort.
– Vee Hua Zhi
Nov 21 at 12:57
1
I think you can get the sum of the coefficients just by setting $x=y=z=1$, am I right?
– Matti P.
Nov 21 at 12:59
Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort.
– Vee Hua Zhi
Nov 21 at 12:57
Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort.
– Vee Hua Zhi
Nov 21 at 12:57
1
1
I think you can get the sum of the coefficients just by setting $x=y=z=1$, am I right?
– Matti P.
Nov 21 at 12:59
I think you can get the sum of the coefficients just by setting $x=y=z=1$, am I right?
– Matti P.
Nov 21 at 12:59
add a comment |
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Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort.
– Vee Hua Zhi
Nov 21 at 12:57
1
I think you can get the sum of the coefficients just by setting $x=y=z=1$, am I right?
– Matti P.
Nov 21 at 12:59