iran-konkur 2020 Q143

iran-konkur · Other · konkur-riazi_1399_specialized_old-curriculum Combinations & Selection Counting Integer Solutions to Equations
143- The number of terms in the expansion of $(a+b+c)^{12}$ is:
\[ (1)\quad 72 \qquad (2)\quad 78 \qquad (3)\quad 84 \qquad (4)\quad 91 \]
\textbf{143-} The number of terms in the expansion of $(a+b+c)^{12}$ is:

\[
(1)\quad 72 \qquad (2)\quad 78 \qquad (3)\quad 84 \qquad (4)\quad 91
\]