1.

{18}_{c_{15 }}+ 2×{18}_{c_{16}}+{17}_{c_{16}}+1 =n_{c_{3 }} then n=

Answer» {18}_{c_{15 }}+ 2×{18}_{c_{16}}+{17}_{c_{16}}+1 =n_{c_{3 }} then n=


Discussion

No Comment Found