1003109905 | math4u.vsb.cz

SubArea:

Limits and continuity

Level:

Project ID:

1003109905

Accepted:

1

Clonable:

0

Easy:

0

Choose the proper expression to expand

\sqrt{x - 5} - \sqrt{x}

when evaluating the limit

lim_{x \to \infty} (\sqrt{x - 5} - \sqrt{x} - 1)

.

\frac{\sqrt{x - 5} + \sqrt{x}}{\sqrt{x - 5} + \sqrt{x}}

\frac{\sqrt{x - 5} + \sqrt{x} + 1}{\sqrt{x - 5} + \sqrt{x} + 1}

\frac{\sqrt{x + 5} + \sqrt{x}}{\sqrt{x + 5} + \sqrt{x}}

\frac{\sqrt{x - 5}}{\sqrt{x - 5}}

\frac{\sqrt{x - 5} + \sqrt{x} - 1}{\sqrt{x - 5} + \sqrt{x} - 1}