對數的意義與對數律

Authored by 昀蓁吳

Mathematics

11th Grade

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22 questions

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MULTIPLE CHOICE QUESTION

20 sec • 1 pt

已知 $2^x=3\$ ，則 $x=?$

$\log_23$

$\log_32$

$\sqrt[]{3}$

$\sqrt[3]{2}$

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

已知 $x=\log_37$ ,則下列何者正確？

$3^x=7$

$7^x=3$

$x^7=3$

$x^3=7$

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

已知 $x=\log_34$ ,則 $3^x=?$ ？

(a)

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

已知 $x=\log_34$ ,則 $3^{2x}=?$ ？

$64$

$81$

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

已知 $x=\log_34$ ,則 $3^{-x}=?$ ？

$4$

$\frac{1}{4}$

$-4$

$-\frac{1}{4}$

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

$3^{\log_37\ }=$ ?

(a)

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

求log₂ 8的值。

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

求log₆ 1的值。

$\frac{1}{6}$

10.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

求 $\log_3\sqrt[]{3}\$ 的值。

$\frac{1}{3}$

$\frac{1}{2}$

$-2$

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對數的意義與對數律

已知 2x=3 2^x=3\ 2x=3 ，則 x=?x=?x=?

已知 x=log⁡37x=\log_37x=log3​7 ,則下列何者正確？

已知 x=log⁡34x=\log_34x=log3​4 ,則 3x=?3^x=?3x=? ？ (a)

已知 x=log⁡34x=\log_34x=log3​4 ,則 32x=?3^{2x}=?32x=? ？

已知 x=log⁡34x=\log_34x=log3​4 ,則 3−x=?3^{-x}=?3−x=? ？

3log⁡37 =3^{\log_37\ }=3log3​7 = ? (a)

求log2 8的值。

求log4 64的值。

求log6 1的值。

求 log⁡33 \log_3\sqrt[]{3}\ log3​3​ 的值。

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已知 $2^x=3\$ ，則 $x=?$

已知 $x=\log_37$ ,則下列何者正確？

已知 $x=\log_34$ ,則 $3^x=?$ ？

(a)

已知 $x=\log_34$ ,則 $3^{2x}=?$ ？

已知 $x=\log_34$ ,則 $3^{-x}=?$ ？

$3^{\log_37\ }=$ ?

(a)

求log₂ 8的值。

求log₄ 64的值。

求log₆ 1的值。

求 $\log_3\sqrt[]{3}\$ 的值。