1 F(X)=LN(LN|X|)A) R B) R\ {0} C)   ; 1  1; D) 0;...

$1 F(X)=LN(LN|X|)A) R B) R\ {0} C)   ; 1  1; D) 0;...$

450 CAU TRAC NGHIEM TOAN THEO CHU DE THPTQG

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Đáp án tham khảo

Câu 81.1 f(x)=ln(ln|x|)

a) R b) R\ {0} c)



^{  }

^{; 1}

 

^

^1;

^



d)



^0;

^



x

x







f x

x

 

¹

⁴



ln

2