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CBSE Class 12 Math 2020 Delhi Set 1 Solved Paper

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Question : 13 of 36
Marks: +1, -0
The least value of the function f(x)=ax+  bx(a>0,  b>0,  x>0)f(x)= a x+\;\frac{b}{x} (a>0,\;b>0,\;x>0) is_____
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