If 4x²+1/9x²= 14⅔, find [2x+1/3x]
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(2x+1/3x)^2= 4x^2+(1/9x^2)+2.2x.1/(3x)
44/3+4/3=48/3=16=4^2
(2x+1/3x)=4 Ans
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