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If 2a+1/2a=10 find : 4a2+1/4a2
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3 votes
If 2a+1/2a=10 find : 4a2+1/4a2

User Juned Ahsan
by
6.6k points

1 Answer

6 votes

Answer:

98

Explanation:

(2a +
(1)/(2a) )² = 4a² + 2 +
(1)/(4a^2) , thus

10² = 4a² + 2 +
(1)/(4a^2) ( subtract 2 from both sides )

100 - 2 = 4a² +
(1)/(4a^2) , that is

4a² +
(1)/(4a^2) = 98

User Manchego
by
6.7k points
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