13-04-2019
Mathematics

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If 2a+ 2/a =4, what is the value of 2a^2+ 2/a^2 ?

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vkcentral03 vkcentral03

13-04-2019

Answer:

Step-by-step explanation:

2a + 2/a = 4

a + 1/a = 2

a^2 + 1 = 2a

a^2 - 2a +1 = 0

(a-1)^2 = 0

a = 1

2(1)^2 + (2/(1)^2) = 4

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