Question

please anyone helf please ​

Answer 1

Answer:

answer is 1

Step-by-step explanation:

think so its usefull

Answer 2

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

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

$\frac{5 - 2 \sqrt{5} + 1}{5 - 1} + \frac{5 + 2 \sqrt{5} + 1 }{5 - 1}$

$\frac{(5 - 2 \sqrt{5} + 1) + (5 + 2 \sqrt{5} + 1 )}{4}$

$\frac{(5 + 5) + (1 + 1) + (2 \sqrt{5} - 2 \sqrt{5} )}{4}$

$\frac{12}{4}$

$3$