1
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25
Change Language

If $$\left(x^2 \log _x 27\right) \cdot \log _9 x=x+4$$ then the value of $$x$$ is

A
2
B
$$ -\frac{4}{3} $$
C
$$-$$2
D
$$ \frac{4}{3} $$
2
WB JEE 2022
MCQ (Single Correct Answer)
+2
-0.5
Change Language

If x satisfies the inequality $${\log _{25}}{x^2} + {({\log _5}x)^2} < 2$$, then x belongs to

A
$$\left( {{1 \over 5},5} \right)$$
B
$$\left( {{1 \over {25}},5} \right)$$
C
$$\left( {{1 \over 5},25} \right)$$
D
$$\left( {{1 \over {25}},25} \right)$$
3
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
Change Language
If 2 log(x + 1) $$ - $$ log(x2 $$ - $$ 1) = log 2, then x =
A
only 3
B
$$ - $$1 and 3
C
only $$ - $$1
D
1 and 3
4
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.25
Change Language
If $$\log _2^6 + {1 \over {2x}} = {\log _2}\left( {{2^{{1 \over x}}} + 8} \right)$$, then the value of x are
A
$${1 \over 4},{1 \over 3}$$
B
$${1 \over 4},{1 \over 2}$$
C
$$-$$$${1 \over 4},{1 \over 2}$$
D
$${1 \over 3}, - {1 \over 2}$$
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