If \[y=lo{{g}_{10}}x+lo{{g}_{x}}10+lo{{g}_{x}}x+lo{{g}_{10}}10\] then what is \[{{\left( \frac{dy}{dx} \right)}_{x=10}}\] equal to?

If \[y=lo{{g}_{10}}x+lo{{g}_{x}}10+lo{{g}_{x}}x+lo{{g}_{10}}10\] then

1.	If \[y=lo{{g}_{10}}x+lo{{g}_{x}}10+lo{{g}_{x}}x+lo{{g}_{10}}10\] then what is \[{{\left( \frac{dy}{dx} \right)}_{x=10}}\] equal to?
A.	10
B.	2
C.	1
D.	0
Answer» E.

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If \[y=lo{{g}_{10}}x+lo{{g}_{x}}10+lo{{g}_{x}}x+lo{{g}_{10}}10\] then what is \[{{\left( \frac{dy}{dx} \right)}_{x=10}}\] equal to?

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