If x - y - 1- then -r-0nrnCrxr-yn-r-

The correct option is A nx ∑_r=0 ^nr ^nC_rx^ry^n r =∑_r=0 ^nrn!/(n r)!r!x^ry^n r =nx(y+x)^n 1 =nx(1)^n 1 ... given in the above quest ...

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Middle Terms

If x + y = ...

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If $x + y = 1$ , then $n \sum r = 0 r^{n} C_{r} x^{r} . y^{n - r} =$

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If x + y = 1, then $\sum_{r = 0}^{n} r^{n} C_{r} x^{r} y^{n - r}$ equals:

n (X) = m, n (Y) = n

n (X \cap Y) = p

n (X \cup Y) =

If $y = {[x + \sqrt{x^{2} + a^{2}}]}^{n}, t h e n \frac{d y}{d x}$ is equal to

\sum_{r = 0}^{n} {r + 1}^{n} C_{r} = (n + 2) 2^{n - 1}

\sum_{r = 0}^{n} {r + 1}^{n} C_{r} = (1 + x)^{n} + n x (1 + x)^{n - 1}

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