1. The coefficient of y in the expansion of (y² + c/y)5 is
2. (1.1)10000 is _____ 1000
3. The fourth term in the expansion (x - 2y)12 is
4. If n is a positive integer, then (√3+1)2n+1 + (√3−1)2n+1 is
5. If the third term in the binomial expansion of (1 + x)m is (-1/8)x² then the rational value of m is
6. The greatest coefficient in the expansion of (1 + x)10 is
7. The coefficient of xn in the expansion of (1 - 2x + 3x² - 4x³ + ........)-n is
8. The value of n in the expansion of (a + b)n if the first three terms of the expansion are 729, 7290 and 30375, respectively is
9. If α and β are the roots of the equation x² - x + 1 = 0 then the value of α2009 + β2009 is
10. The general term of the expansion (a + b)n is