Find the sum of coefficients of (a+2b)^6

1.	Find the sum of coefficients of (a+2b)^6
Answer» ANSWER: the sum of COEFFICIENTS is GIVEN by f(1,1)=n∑k=0ck. Just write down the general formula for the binomial expansion of (a−b)n. Then consider what happens when a=b. You will see that the sum of the binomial coefficients must be equal to zero.

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ANSWER:

the sum of COEFFICIENTS is GIVEN by f(1,1)=n∑k=0ck. Just write down the general formula for the binomial expansion of (a−b)n. Then consider what happens when a=b. You will see that the sum of the binomial coefficients must be equal to zero.

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Find the sum of coefficients of (a+2b)^6

the sum of COEFFICIENTS is GIVEN by f(1,1)=n∑k=0ck. Just write down the general formula for the binomial expansion of (a−b)n. Then consider what happens when a=b. You will see that the sum of the binomial coefficients must be equal to zero.

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