Question

please help me to solve 1 no. of this question .....( with full explanation please)

Answer 1

Rationalize the diniminator ( by multiplyinr root5 in numerator & denominator)you get 2root5÷5. then multiply 2 with root5=2.236)
then divide it by 5. you get o.8944271.

By ur frd Nadhin

Answer 2

Hello,

Solution:

To solve we first rationalise the denominator

$= \frac{2}{ \sqrt{5} } \\ \\ = \frac{2}{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } \\ \\ = \frac{2 \sqrt{5} }{5} \\ \\ = \frac{2}{5} \times 2.236 \\ \\ since \: \sqrt{5} = 2.236 \\ \\ = \frac{4.472}{5} \\ \\ = 0.8944$

Hope it helps you