please help me guys...
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Answer:
²
Step-by-step explanation:
√x+ 1/√x=√(√x+ 1/√x)²
=√[√x²+(1/√x)²+(2 × √x × 1/√x)]
=√[x+ 1/x +2]
=√[(7+4√3) + 1/(7+4√3) + 2]
=√[(7+4√3) + (7-4√3)/(7+4√3)(7-4√3) + 2]
=√[7+4√3 + (7-4√3)/7²-(4√3)² + 2]
=√[7+4√3 + (7-4√3)/(49-48) + 2]
=√[7+4√3 + 7-4√3 + 2]
=√[7+7+4√3-4√3+2]
=√[14+0+2]
=√16
=4
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