MCQ
$\sum\limits^{16}_{\text{r}+2}{^{16}}\text{C}_\text{r}=$
- A215 - 15
- B216 - 16
- C216 - 17
- D217 - 17
Solution:
Consider given the binomial expression,
$\sum\limits^{16}_{\text{r}+2}{^{16}}\text{C}_\text{r}={^{16}}\text{C}_{2}+{^{16}}\text{C}_{3}+{^{16}}\text{C}_{3}+\ .....\ {^{16}}\text{C}_{16}$
$=2^{16}-17$
Hence, this is the answer.
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