JennyAira JennyAira

10-06-2021
Mathematics

contestada

Simplify each of the following by rationalizing the denominator.
please do answer my doubt

Simplify each of the following by rationalizing the denominator please do answer my doubt class=

Respuesta :

abidemiokin abidemiokin

15-06-2021

Answer:

(47+21√5)/2

Step-by-step explanation:

Given the expression

7+3√5/7-3√5

= 7+3√5/7-3√5 * (7+3√5)/(7+3√5)

= 49+21√5+21√5+9(5)/[7(7)-9(5)]

= 49+42√5+45/49-45

= 94+42√5/4

= 2(47+21√5)/4

=(47+21√5)/2

Hence the required expression is (47+21√5)/2

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