What is expand C(2n-1,n-1) ?

The solution to expand C(2n-1,n-1) is 2nC-1*C,n-1*C

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expand C(2n-1,n-1)

expand

C (2 n - 1, n - 1)

2 n C - 1 \cdot C, n - 1 \cdot C

Solution steps

C (2 n - 1, n - 1)

Distribute parentheses

= C \cdot 2 n + C (- 1, n) + C (- 1)

Apply minus-plus rules

+ (- a) = - a

= 2 n C - 1 \cdot C, n - 1 \cdot C

\frac{( x + 1 ) !}{x ( x - 2 )}

d x (x^{2} + x + \frac{x ^{3}}{3} - 21)

\frac{6}{( x - 2 ) ^{3}}

\frac{1}{2 x - 3} - \frac{1}{2 x + 3}

e (3 y - 3)^{2}

What is expand C(2n-1,n-1) ?
The solution to expand C(2n-1,n-1) is 2nC-1*C,n-1*C