Question

Which expression is equal to
10
V50
?
O 5
O v2
25
22

Answer 1

B. √2

Explanation:

First, rationalise the fraction so that the denominator is a whole number.

10 * √50

⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

√50 * √50

10 √50

⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

50

√50 can be simplified as 5√2

10 *5√2 = 50√2

50√2

⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

50

- The 50's cancel out and you are left with √2