abdullahsaee456789
abdullahsaee456789 abdullahsaee456789
  • 12-12-2020
  • Mathematics
contestada

if q=√5+2 then find q+1/q

Respuesta :

jcherry99
jcherry99 jcherry99
  • 12-12-2020

Answer:

Step-by-step explanation:

Givens

q + 1/q

q = √5  +  2

Solution

√5 + 2  +  1/(√5 + 2)                      Rationalize the denominator, 2nd term

√5 + 2 + (√5 - 2) / ( (√5+2)(5 - 2) )

√5 + 2 + (√5 - 2) / (5 - 4)                Simplify the denominator of term 2

√5 + 2 + (√5 - 2) / 1

2√5    <<<<<< Answer

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