Forgot password? New user? Sign up
Existing user? Log in
Find the coefficient of a5b5c5d6a^5b^5c^5d^6a5b5c5d6 in the expansion of (bcd+acd+abd+abc)7.(bcd+acd + abd + abc)^7.(bcd+acd+abd+abc)7.
Problem Loading...
Note Loading...
Set Loading...