Asked by tabish | 10th Nov, 2012, 09:32: AM
It is known that the number of terms in the expansion of (x1 + x2 + ... +xr)n = n+r-1Cr-1.
Use this formula to find the number of terms in the expansion of the given expression.
Answered by | 16th Nov, 2012, 10:29: PM
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