Question

4 + root 5 upon 4 minus root 5 bracket band + 4 minus root 5 upon 4 + root 5 solve simplified is rationalise denominators


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Answer 1

Answer:

2

Step-by-step explanation:

The Given Mathematical Statement is:

   $\frac{4+\sqrt{5} }{4-\sqrt{5}} +\frac{4-\sqrt{5}}{4+\sqrt{5}}$

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

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

= $2$       (Ans)

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By- Md. Mominur Islam Mahim.