Mathematical induction and binomial theorem

The number of terms in the expansion of (a + b)^8 is:

• 1 10
• 2 8
• 3 9
• 4 16

The coefficient of x2 in (1 + x)^5 is:

• 1 15
• 2 5
• 3 20
• 4 10

The sum of the binomial coefficients in (1 + x)^4 is:

• 1 8
• 2 4
• 3 16
• 4 32

Mathematical induction is used to prove statements for:

• 1 Real numbers
• 2 Only even numbers
• 3 All natural numbers
• 4 Fractions

The middle term of (a + b)^6 is the:

• 1 4th
• 2 3rd
• 3 7th
• 4 5th