Question

Rationalize the denominator and simplify 2by 3+ root 5

Answer 1

Solution :

2/(3+√5)

= [2(3-√5)]/[(3+√5)(3-√5)]

= [2(3-√5)]/[3²-(√5)²]

= 2(3-√5)/(9-5)

= 2(3-√5)/4

= (3-√5)/2

••••

Answer 2

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