# The no. of terms in the expansion $(x+y+z)^{10}$ is ?

Toolbox:
• No. of terms in the expansion $(x+y+z)^n$ is $\large\frac{1}{2}$$(n+1)(n+2) The no. of terms = \large\frac{1}{2}$$(10+1)(10+2)$
$=66$