Question

please tell answer fast​

Answer 1

Answer:

(√((√5+1)/(√5−1))+√((√5−1)/(√5+1))²

=3.236068

Answer 2

Step-by-step explanation:

$a = \frac{ \sqrt{5} + 1}{ \sqrt{5} - 1 } \times \frac{ \sqrt{5} + 1 }{ \sqrt{5} + 1 } = \frac{ { (\sqrt{5} + 1)}^{2} }{4} \\ \sqrt{a} = \frac{ \sqrt{5} + 1}{2} \\ \\ b = \frac{ \sqrt{5} - 1}{ \sqrt{5} + 1 } \times \frac{ \sqrt{5} - 1 }{ \sqrt{5} - 1 } = \frac{ { (\sqrt{5 } - 1) }^{2} }{4} \\ \sqrt{b } = \frac{ \sqrt{5} - 1 }{2} \\ { \sqrt{a} + \sqrt{b}) }^{2} = ({\frac{ \sqrt{5} + 1 + \sqrt{5} - 1 }{2}) }^{2} \\ = {( \frac{2 \sqrt{5} }{2} )}^{2} = 5$