Ifx=7+√40 find the value of √x+1/√x
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Answer:
X=7+v40 then vx=v5+v2
1/vx=1/(v5+v2)=(v5-v2)/3
Vx+1/vx=v5+v2+(v5-v2)/3=(4v5+2v2)/3
=2/3(2v5+v2)
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