Question

The no. of dissimilar terms in the expansion of (a + b + c)¹⁰ is

• A. 66
• B. 60
• C. 11
• D. 45

Answer 1

Answer: (A)

66

Answer 2

= $10 + 3 - 1C_{2} =^{12}C_{2} = \frac{12x11}{2x1} = 66$.