Question

Plss help me solve this​

Answer 1

Step-by-step explanation:

We have,

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

$= \frac{ (\sqrt{5} + 1)( \sqrt{5} + 1) + ( \sqrt{5} - 1)( \sqrt{5} - 1) }{( \sqrt{5} - 1 )( \sqrt{5} + 1) }$

$= \frac{ (\sqrt{5} + 1)^{2} + ( \sqrt{5} - 1) ^{2} }{( \sqrt{5}) ^{2} - (1)^{2} }$

We know, $\rm \bold{(a+b)^{2}+(a-b)^{2}=2({a}^{2}+{b}^{2})}$

So,

$= \frac{2 \{(\sqrt{5} )^{2} + (1)^{2} \} }{( \sqrt{5}) ^{2} - (1)^{2} }$

$= \frac{2 (5 + 1 ) }{5- 1 }$

$= \frac{2 \times 6 }{4 }$

$= \frac{ 3 }{2 }$

Answer 2

Answer:

this is the ans of ur question.

Step-by-step explanation:

hope it will help u.