How Many Coefficients in the Binomial Series Expansion Of $( 1 + x ) ^ { 7 }$

question 101

Multiple Choice

How many coefficients in the binomial series expansion of $( 1 + x ) ^ { 7 }$ are divisible by 7?

• A)0
• B)5
• C)7
• D)3
• E)2
• F)6
• G)1
• H)4