A+1/a=3, find 4a/a^2+a+1 – InterviewSolution

1.

A+1/a=3, find 4a/a^2+a+1

Answer»

a+1/a=3

a+1=3a

1=3a-a

1/2=a

put the VALUE of a in the equation

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

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

2/(3/4)+1

=2/(7/4)

=8/7

the answer is 8/7 MARK as BRAINIST

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